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The Wisconsin engineer
Volume 37, No. 8 (May 1933)
Polygon, p. 130
Page 130
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This material may be protected by copyright law (e.g., Title 17, US Code).| For information on re-use, see http://digital.library.wisc.edu/1711.dl/Copyright
The Wisconsin engineer
Volume 37, No. 8 (May 1933)
Polygon, p. 130
Page 130
This material may be protected by copyright law (e.g., Title 17, US Code).| For information on re-use, see http://digital.library.wisc.edu/1711.dl/Copyright