3657964

Information

• Patent Grant
• 3657964

• References
• Source

• Patent Number

  3,657,964

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  52 years ago

• CPC

  • B25B23/145 - specially adapted for fluid operated wrenches or screwdrivers
  • B23P19/065 - Arrangements for torque limiters or torque indicators in screw or nut setting machines
  • B23P19/069 - Multi-spindle machines
  • B25B21/00 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
  • F01B25/26 - Warning devices

• US Classifications

  • 091 - Motors: expansible chamber type
  • 173 - Tool driving or impacting