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| Patents for William H. Harstick | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,900,058 | Mar. 07, 1933 | W.H. Harstick | Power Plant | power plants | |
| 1,943,071 | Jan. 09, 1934 | W.H. Harstick | Power Transmission Mechanism | power transmissions | |