3802638

Information

• Patent Grant
• 3802638

• References
• Source

• Patent Number

  3,802,638

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1974
  50 years ago

• CPC

  • B41J33/006 - Arrangements to attach the ribbon to the spool
  • B41L47/48 - with inking or ink-ribbon devices
  • B65H75/28 - Arrangements for positively securing ends of material

• US Classifications

  • 242 - Winding, tensioning, or guiding