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Class Information
Number: 470/90
Name: Threaded, headed fastener, or washer making: process and apparatus > Apparatus for making internally threaded fastener, i.e., nut > Having forger > And plural rotatable dies
Description: Subject matter further provided with two mechanisms wherein each mechanism is provided with two cooperating mold elements capable of imparting or forming a shape or impression to the nut and further wherein the mechanisms are capable of rotary motion.

Patents under this class:

Patent Number Title Of Patent Date Issued
4574609 Nut forming apparatus Mar. 11, 1986
4175417 Workpiece forming machine Nov. 27, 1979

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