1556889

Information

• Patent Grant
• 1556889

• References
• Source

• Patent Number

  1,556,889

• Date Filed

  Not available

• Date Issued

  Tuesday, October 13, 1925
  99 years ago

• CPC

  • B28D1/26 - by impact tools
  • B25D11/068 - in which the tool bit or anvil is hit by a rotary impulse member
  • Y10S81/12 - Power hammer
  • Y10T29/4589 - Blade or chisel
  • Y10T70/7797 - Picking
  • Y10T74/18296 - Cam and slide

• US Classifications

  • 074 - Machine element or mechanism
  • 015 - Brushing, scrubbing, and general cleaning
  • 029 - Metal working
  • 070 - Locks
  • 072 - Metal deforming
  • 081 - Tools
  • 173 - Tool driving or impacting