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| Patents for Josephine M. Strempfer | |||||
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| Number | Date | Patentee | Title | Type | |
| 904,007 | Nov. 17, 1908 | C.P. O'Neill | Precision Tool | metal lathe accessories and attachments | |
| 911,012 | Jan. 26, 1909 | A.I. Jacobs | Chuck | drill chucks | |
| 933,179 | Sep. 07, 1909 | A.I. Jacobs | Chuck | ||
| 960,244 | Jun. 07, 1910 | W.G. Allen | Manufacture of Screws | ||
| 1,067,876 | Jul. 22, 1913 | J. Merritt | Ring Forming Tool | chain | |
| 1,100,990 | Jun. 23, 1914 | L.E. Rhodes | Metal Shaper Machine | metal shapers | |