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| All Patents in class 83/322 | |||||
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| Number | Date | Patentee | Title | Type | |
| 482,000 | Sep. 06, 1892 | C.B. Brainard | Wire Straightener and Cutting Machine | metal straightening machines | |
| 3,651,724 | Mar. 28, 1972 | H.W. Huffman | Method and apparatus for producing card sets | ||