3928752

Information

• Patent Grant
• 3928752

• References
• Source

• Patent Number

  3,928,752

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1975
  49 years ago

• CPC

  • G06M3/022 - by subtracting
  • B65H63/086 - responsive to completion of unwinding of a package
  • D05B45/00 - Applications of measuring devices for determining the length of threads used in sewing machines
  • D05B51/00 - Applications of needle-thread guards Thread-break detectors
  • D05B59/02 - Devices for determining or indicating the length of thread still on the bobbin
  • G06M1/10 - by electric or magnetic means
  • B65H2701/31 - Textiles threads or artificial strands of filaments

• US Classifications

  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
  • 112 - Sewing