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| Patents for Jack M. Butler | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,052,462 | Sep. 04, 1962 | J.M. Butler | Swivel Pad for C Clamps and the Like | clamps | |
| 3,695,126 | Oct. 03, 1972 | J.M. Butler, B.M. Armstrong | Indexable Turret Tool Post | metal lathe accessories and attachments | |