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| All Patents in class 235/144R | |||||
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| Number | Date | Patentee | Title | Type | |
| 217,827 | Jul. 22, 1879 | E. Stalmann | Counting-Register | counting registers | |
| 1,255,868 | Feb. 12, 1918 | W.F. Folmer | Magazine Back for Cameras | ||