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| Patents for P. W. Pizzetti | |||||
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| Number | Date | Patentee | Title | Type | |
| 610,021 | Aug. 30, 1898 | C.V. Bogart | Centering Gage | center marking gauges | |
| 634,853 | Oct. 10, 1899 | J.F. Miller | Wrench | wrenches | |
| 1,274,452 | Aug. 06, 1918 | J.J. Richards, Jr. | Grease Gun Filler | grease guns | |