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| All Patents in class 72/166 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,511 | Nov. 11, 1851 | A.W. Johnston | Bending felly | wheelwright | |
| 50,272 | Oct. 03, 1865 | A.S. Philbrook | Improvement in machines for bending scythe-snaths | wood bending machines | |
| 327,173 | Sep. 29, 1885 | E.M. Jewett | Stave-bending machine | barrel making machines | |
| 1,340,320 | May 18, 1920 | J.M. Brown | Crimped-elbow-bending machine | ||
| 4,910,984 | Mar. 27, 1990 | P.D. McGee, C. Young | Progressive roll bender | pipe bending machines | |