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Patents for Edw. H. Downs | |||||
Number | Date | Patentee | Title | Type | |
277,430 | May 08, 1883 | A.J. Smart | Tap Wrench | tap wrenches and die stocks | |
298,248 | May 06, 1884 | A.J. Smart | Combined Drill and Countersink | countersinks | |
303,053 | Aug. 05, 1884 | C.P. Russell | Combined Drill and Countersink | countersinks | |
303,060 | Aug. 05, 1884 | A.J. Smart | Screw Cutting Die | taps and dies | |
306,783 | Oct. 21, 1884 | A.J. Smart | Screw Cutting Die | taps and dies |