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| Patents for Frederick C. Fischer | |||||
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| Number | Date | Patentee | Title | Type | |
| 376,504 | Jan. 17, 1888 | H.W. Atwater | Improvements in Removable Jaws For Wrenches | pipe jaw attachments for wrenches | |
| 679,258 | Jul. 23, 1901 | E. Giebeler | Micrometer Caliper | micrometers | |
| 1,410,032 | Mar. 21, 1922 | C.G. Palmer | Socket Wrench | socket wrenches | |
| 1,414,970 | May 02, 1922 | A.W. Nelson | Adjustable angle plate | angle bars and angle plates | |