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| All Patents in class 81/349 | |||||
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| Number | Date | Patentee | Title | Type | |
| 444,635 | Jan. 13, 1891 | J. Helwig | Bolt and Rivet Cutter | bolt cutters | |
| 460,590 | Oct. 06, 1891 | P. Meyer | Pliers | pliers | |
| 852,479 | May 07, 1907 | K. Weiss | Revolving Pliers | pliers | |
| 1,164,981 | Dec. 21, 1915 | W.A. Bernard | Hand Tool | pliers | |
| 1,453,854 | May 01, 1923 | B.H. Parker | Pipe Wrench | pipe wrenches | |
| 1,553,623 | Sep. 15, 1925 | J.H. McLeod | Parallel Valve Spring Lifter | valve spring tools | |
| 2,035,686 | Mar. 31, 1936 | T. Briegel | Tool for forming joints in tubing | electrician | |