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| All Patents in class 142/37 | |||||
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| Number | Date | Patentee | Title | Type | |
| 809,552 | Jan. 09, 1906 | J. Buffelen | Machine for making columns | wood lathes | |
| 1,419,073 | Jun. 06, 1922 | C.H. Norton | Machine for forming rolls | cylindrical grinders | |