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| All Patents in class 83/405 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,227,162 | May 22, 1917 | C.D. McDonald | Metal-shearing machine | ||
| 3,268,136 | Aug. 23, 1966 | H.W. Huffman | Data card and method of making same | ||