2616690

Information

• Patent Grant
• 2616690

• References
• Source

• Patent Number

  2,616,690

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1952
  72 years ago

• CPC

  • G11B15/605 - without displacing the guiding means
  • G03B1/42 - Guiding, framing, or constraining film in desired position relative to lens system
  • G03B21/42 - Preventing damage to film due to abnormal operation of projector

• US Classifications

  • 226 - Advancing material of indeterminate length
  • 242 - Winding, tensioning, or guiding
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER