3643613

Information

• Patent Grant
• 3643613

• References
• Source

• Patent Number

  3,643,613

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • D05B83/00 - Guards or like devices for preventing injury to operator
  • D05B51/00 - Applications of needle-thread guards Thread-break detectors

• US Classifications

  • 112 - Sewing