3645123

Information

• Patent Grant
• 3645123

• References
• Source

• Patent Number

  3,645,123

• Date Filed

  Not available

• Date Issued

  Tuesday, February 29, 1972
  53 years ago

• CPC

  • G04B17/066 - Manufacture of the spiral spring
  • B21C37/045 - Manufacture of wire or bars with particular section or properties
  • B21D53/50 - metal slide-fastener parts
  • B24B19/00 - Single-purpose machines or devices for particular grinding operations not covered by any other main group
  • Y10T29/49579 - Watch or clock making
  • Y10T29/49609 - Spring making

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working
  • 968 - Horology