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| All Patents of Type: notching machines | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,958,941 | May 15, 1934 | K.J. Chapman | Tool Holder for Nibbling Machines | tool holders | |
| 3,277,763 | Oct. 11, 1966 | V.L. Haug | Notching Machine | notching machines | |
| 3,592,093 | Jul. 13, 1971 | A. Cantelli | Machines for Cutting Sheet Material, Sheet Metal and the Like | notching machines | |
| 3,616,719 | Nov. 02, 1971 | R.B. Tassie | Notching sheet material | notching machines | |