1838967

Information

• Patent Grant
• 1838967

• References
• Source

• Patent Number

  1,838,967

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1931
  93 years ago

• CPC

  • B65H23/1813 - acting on web-roll
  • B65H23/1806 - in reel-to-reel type web winding and unwinding mechanism
  • B65H23/198 - motor-controlled (Controlling electrical drive motors therefor)

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 310 - Electrical generator or motor structure