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| Patents for J. Henry Kaiser | |||||
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| Number | Date | Patentee | Title | Type | |
| 441,777 | Dec. 02, 1890 | J.L. Simmons | Explorer's Instrument | magnetic compasses | |
| 482,338 | Sep. 13, 1892 | M.D. Converse | Nail Extractor | nail extractors | |
| 487,331 | Dec. 06, 1892 | J.W. Kellam | Adjustable Flange Wrench | flange wrenches | |
| 541,071 | Jun. 18, 1895 | M.D. Converse | Nail Extractor | nail making machines | |
| 610,360 | Sep. 06, 1898 | M.D. Converse, J.M. Le Roy | Nail Extractor | nail extractors | |
| 618,245 | Jan. 24, 1899 | M.D. Converse | Monkey Wrench | quick adjust wrenches | |