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:
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