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| All Patents in class 464/69 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 258,401 | May 23, 1882 | A.O. Frick | Traction Engine | |
| 627,190 | Jun. 20, 1899 | E. Huber | Traction Engine | ||
 | 803,006 | Oct. 31, 1905 | J.B. Merriam | Flexible Coupling | |
 | 1,013,786 | Jan. 02, 1912 | J.W. Lambert | Power transmission | |
 | 1,069,454 | Aug. 05, 1913 | J.B. Meriam | Flexible Coupling | |
 | 1,242,906 | Oct. 16, 1917 | B.F. Augustine | Shaft Coupling | |