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| Patents for Producto Machine Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,892,158 | Jul. 01, 1975 | G.G. Smeets | Angularly adjustable punch adaptor | dies for punch presses | |
| GB-2,056,896 | Mar. 25, 1981 | M. Orrow | Improvements in and relating to punch assemblies | punch presses | |
| GB-2,077,173 | Dec. 16, 1981 | M. Orrow | Improvements in and relating to punching machines | punch presses | |