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| All Patents in class 101/92 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,258,776 | Oct. 14, 1941 | E. Hawkinson, A.W. L'Hommedieu | Variable speed mechanism | metalworking variable speed mechanisms | |
| 2,824,736 | Feb. 25, 1958 | K.C. Allen | Ticket printer | ||
| 3,237,556 | Mar. 01, 1966 | H.W. Huffman | Printing press mechanism | ||