3330021

Information

• Patent Grant
• 3330021

• References
• Source

• Patent Number

  3,330,021

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1967
  57 years ago

• CPC

  • B23K37/0531 - internal pipe alignment clamps
  • Y10T29/5387 - Pivotal arms
  • Y10T29/53874 - Pivotal grippers on screw
  • Y10T29/53978 - including means to relatively position plural work parts
  • Y10T29/53983 - Work-supported apparatus
  • Y10T279/1071 - Lever
  • Y10T279/1095 - Pivoted

• US Classifications

  • 029 - Metal working
  • 228 - Metal fusion bonding
  • 269 - Work holders
  • 279 - Chucks or sockets