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Filter: Categories of Wisconsin Historical Images
Filter: FORMAT_NUMBER_ORG of M2002-156, Box 3, Folder 4
Filter: Subject of technology
Filter: Year of 1900-1999
| Date: | 01 13 1931 |
|---|---|
| Description: | Engineering photograph of two cotton picker fingers, an integral gear with shielded washer and a threaded gear and shielded lockwasher. |
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