1519809

Information

• Patent Grant
• 1519809

• References
• Source

• Patent Number

  1,519,809

• Date Filed

  Not available

• Date Issued

  Tuesday, December 16, 1924
  101 years ago

• CPC

  • D01H7/2225 - the braking means surrounding nearly the whole periphery of the whorl

• US Classifications

  • 242 - Winding, tensioning, or guiding