1738645

Information

• Patent Grant
• 1738645

• References
• Source

• Patent Number

  1,738,645

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1929
  95 years ago

• CPC

  • E21B6/00 - Drives for combined percussion and rotary drilling
  • Y10T279/17059 - Rotary socket

• US Classifications

  • 418 - Rotary expansible chamber devices
  • 279 - Chucks or sockets