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| All Patents in class 83/384 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,761,351 | Jun. 03, 1930 | J.J. Kutscheid | Holddown for squaring shears | metal shearing machines | |
| 3,152,499 | Oct. 13, 1964 | H. Moelbert | Method and apparatus for shearing using momentarily applied supporting and clamping forces of great magnitude | metal shearing machines | |