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| All Patents in class 177/5 | |||||
| Picture | Number | Date | Patentee | Title | |
| 3,045,229 | Jul. 17, 1962 | K.C. Allen | Weighing scales | ||
| 3,081,831 | Mar. 19, 1963 | M.T. Thorsson | Weighing Scale with Removed Material Indicator | ||
| 3,120,287 | Feb. 04, 1964 | K.C. Allen | Weighing scales | ||