Pamela P. Allen Papers, 1964, 1967-1980

Container Title
McCormick Extension Cases - U.S. Patent Office
Volume   28
, 1845 (Improvement in Reaping machines)
1848
Volume   29
Reaping Machine
Volume   30
Improvement in Reaping Machine, 1834 Patent (certified copies)
Volume   31
The McCormick Extension Case of 1848
Volume   32-33
, 1859 (1834 patent)
Volume   34-35
1861
Volume   36
, 1861 (Patent of 1847)