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| All Patents in class 396/373 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,273,733 | Jul. 23, 1918 | J.M. Calderwood | Drill Holder | ||
| 2,339,657 | Jan. 18, 1944 | B.L. Smith | Photographic Identification Equipment Unit | photographic studio apparatus | |
| 2,590,409 | Mar. 25, 1952 | E.S. Hineline | Hand-Held Roll-Film Camera | cameras | |