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Container
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Title
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Series: Invention Materials
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Subseries: Writing utensils
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Box
2
Folder
9
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Automatic pencil eraser patents, 1875-1937
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Box
2
Folder
10
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Automatic pencil eraser notes, 1936-1937
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Box
2
Folder
11
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Automatic fountain pen filler, 1930-1937
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Subseries: Color photography
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Research notes
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Box
2
Folder
12
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Idea book #5, 1907-1908
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Box
3
Folder
1-5
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1923-1938
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Box
3
Folder
6-9
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Patent applications/specifications, 1910-1933
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Box
4
Folder
1
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Correspondence with companies, 1928-1936
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Subseries: Clarence Irving Zimmerman, 1909
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Box
4
Folder
2
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Circuits thesis
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Box
4
Folder
3
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Correspondence with James
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Box
4
Folder
4
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Patent applications and specifications
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Box
4
Folder
5
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Research notes on rectifiers and other subjects
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Subseries: General/other inventions
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Box
4
Folder
6
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Patent applications/specifications, 1913-1914
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Box
4
Folder
7
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Research ideas, 1926-1936
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Box
4
Folder
8
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Harry Dey electric car, 1926
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Correspondence
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Box
4
Folder
9
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A. Sudduth, 1927-1935
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Box
5
Folder
1-2
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Oliver B. Zimmerman, 1933-1938
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Box
5
Folder
3-7
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Companies, 1931-1935, 1938-1939
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Subseries: Lawrence Engine correspondence
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Box
5
Folder
8
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James with others, 1921-1938
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Box
5
Folder
9-10
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James G. Zimmerman and P.A. Lawrence, 1922-1937
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Box
6
Folder
1-5
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James G. Zimmerman and P.A. Lawrence, 1922-1937 (continued)
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Box
6
Folder
6-8
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James with companies, 1933-1938
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Subseries: Dry cell storage battery
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Research notes
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Box
6
Folder
9
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1927-1937
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Box
7
Folder
1-2
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, 1927-1937 (continued)
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Notebook
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Box
7
Folder
3
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1931-1932
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Box
7
Folder
4
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1934-1936
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Box
7
Folder
5
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Correspondence and notes to patent attorneys, 1928-1931
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Box
7
Folder
6
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Newspaper clippings on Drumm battery, 1930-1934
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Box
7
Folder
7
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Patent applications/specifications, 1937
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Box
7
Folder
8
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Battery casings, undated
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Box
7
Folder
9
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Subseries: Shadograf, 1931
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