3643990

Information

• Patent Grant
• 3643990

• References
• Source

• Patent Number

  3,643,990

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • B65H63/088 - Clamping device
  • B65H69/00 - Methods of, or devices for, interconnecting successive lengths of material Knot-tying devices ;Control of the correct working of the interconnecting device
  • B65H2701/31 - Textiles threads or artificial strands of filaments

• US Classifications

  • 289 - Knots and knot tying
  • 242 - Winding, tensioning, or guiding