1977164

Information

• Patent Grant
• 1977164

• References
• Source

• Patent Number

  1,977,164

• Date Filed

  Not available

• Date Issued

  Tuesday, October 16, 1934
  91 years ago

• CPC

  • B21J9/06 - Swaging presses Upsetting presses
  • B21J13/025 - Dies with parts moving along auxiliary lateral directions
  • B21K1/46 - with heads
  • B21K1/48 - Machines working with hammers

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus