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| All Patents in class 242/375 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,926,452 | Sep. 12, 1933 | R.A. Norling | Balancer | ||
| 2,469,674 | May 10, 1949 | E.J. Witchger | Tape rule | tape measures | |
| 2,607,549 | Aug. 19, 1952 | E.J. Witchger | Stop for detachable measuring tapes | ||
| 2,655,324 | Oct. 13, 1953 | J.L. Clark | Detachable tape measure | tape measures | |
| 2,727,701 | Dec. 20, 1955 | C. Zelnick | Tape measure | tape measures | |