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Patents for Harvey Hubbell | |||||
Number | Date | Patentee | Title | Type | |
418,411 | Dec. 31, 1889 | L.B. Holmes | Speed Indicator | measurement gauges | |
650,465 | May 29, 1900 | H. Hubbell | Speed Indicator | measurement gauges | |
1,525,134 | Feb. 03, 1925 | H. Hubbell | Tapping machine | tapping machines |