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| All Patents in class 409/138 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 328,383 | Oct. 13, 1885 | M.T. Collins | Machine for shaping the ends of sucker-rods | ||
 | 2,160,110 | May 30, 1939 | F.W. Seybold | Composing room saw | |
 | 3,494,394 | Feb. 10, 1970 | P.G. Stock | Trimmer | |