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| All Patents in class 235/61.0PS | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,055,965 | Sep. 29, 1936 | J.W. Bryce | Scale | ||
| 2,803,448 | Aug. 20, 1957 | L.B. Biebel | Computing scale | ||
| 2,948,464 | Aug. 09, 1960 | K.C. Allen | Computing mechanism | ||
| 2,963,222 | Dec. 06, 1960 | K.C. Allen | Computing and ticket printing scale | ||
| 3,095,054 | Jun. 25, 1963 | K.C. Allen | Weighing scales | ||
| 3,109,091 | Oct. 29, 1963 | K.C. Allen | Scale comprising a multiplier for using a precomputed table and fractional multiplication | ||
| 3,120,287 | Feb. 04, 1964 | K.C. Allen | Weighing scales | ||