3312411

Information

• Patent Grant
• 3312411

• References
• Source

• Patent Number

  3,312,411

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1967
  57 years ago

• CPC

  • G11B15/662 - Positioning or locking of spool or reel
  • B65H18/04 - Interior-supporting
  • B65H75/242 - Expansible spindles, mandrels or chucks
  • G03B21/321 - Holders for films
  • B65H2301/41346 - separate elements engaging each end of the roll (
  • B65H2701/378 - Recording tape
  • B65H2801/45 - Audio or video tape players, or related mechanism

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 248 - Supports
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER