3357620

Information

• Patent Grant
• 3357620

• References
• Source

• Patent Number

  3,357,620

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1967
  58 years ago

• CPC

  • B23K20/10 - making use of vibrations
  • G04B19/103 - attached or inlaid numbers
  • G04D3/00 - Watchmakers' or watch-repairers' machines or tools for working materials
  • G04D3/0048 - for dials
  • Y10T29/49583 - having indicia, face, or dial

• US Classifications

  • 228 - Metal fusion bonding
  • 029 - Metal working
  • 968 - Horology