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| All Patents in class 83/88 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,112,850 | Apr. 05, 1938 | P.C. Klingler, G.B. Scheffey | Punching machine and the like | punch presses | |
| 2,632,510 | Mar. 24, 1953 | H.A. Doppleb | Cutoff cylinder | paper cutting machines | |
| 3,228,273 | Jan. 11, 1966 | H.W. Huffman | Sheet delivery mechanism | ||
| 3,651,724 | Mar. 28, 1972 | H.W. Huffman | Method and apparatus for producing card sets | ||