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| All Patents in class 30/360 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,353,164 | Oct. 12, 1982 | V.W. Pearson, W. Linquist | Draw punch | metal punches | |
| 4,543,722 | Oct. 01, 1985 | R.H. Malanaphy, L.G. Adleman | Slug-splitting punch | metal punches | |
| 4,594,779 | Jun. 17, 1986 | K. Hagemeyer | Punch and die adapter | ||