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| Patents for John J. Witt | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,369,152 | Feb. 22, 1921 | J.J. Witt | Tailstock for lathes | |
 | 1,460,121 | Jun. 26, 1923 | J.J. Witt | Lathe-carriage attachment | |
 | 1,509,387 | Sep. 23, 1924 | J.J. Witt | Shaper-driving mechanism | |
 | 1,635,732 | Jul. 12, 1927 | J.J. Witt | Molding cutter | |
 | 1,757,155 | May 06, 1930 | J.J. Witt | Variety lathe | |