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Class Information
Number: 470/196
Name: Threaded, headed fastener, or washer making: process and apparatus > Implement, e.g., die, etc. > Nail forming die > Wrought type
Description: Subject matter wherein the fastener is formed by a process having a step of heating or cooling a fastener and a step of shaping the fastener.

Patents under this class:

Patent Number Title Of Patent Date Issued
4748708 Spike harrow tooth and method of manufacture Jun. 7, 1988

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