1642355

Information

• Patent Grant
• 1642355

• References
• Source

• Patent Number

  1,642,355

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1927
  97 years ago

• CPC

  • E21C1/10 - with a built-in feeding device
  • Y10T74/177 - Rack and pinion adjusting means

• US Classifications

  • 074 - Machine element or mechanism
  • 173 - Tool driving or impacting