3831881

Information

• Patent Grant
• 3831881

• References
• Source

• Patent Number

  3,831,881

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1974
  51 years ago

• CPC

  • G03B17/265 - specially adapted for motion picture film
  • B65H18/10 - Mechanisms in which power is applied to web-roll spindle
  • B65H2801/45 - Audio or video tape players, or related mechanism

• US Classifications

  • 242 - Winding, tensioning, or guiding