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| Patents for Amos H. Hawley Sr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,203,803 | Jun. 11, 1940 | A.H. Hawley, Sr., E.D. Vancil | Broaching Machine | broaching machines | |
| 2,290,590 | Jul. 21, 1942 | W. Trible, A.H. Hawley, Sr. | Indexing Mechanism | indexers and dividers | |
| 2,308,689 | Jan. 19, 1943 | E.D. Vancil, A.H. Hawley, Sr. | Broaching Machine | broaching machines | |
| 2,682,941 | Jul. 06, 1954 | A.H. Hawley, Sr. | Machine Tool Transmission | metalworking power transmission | |