2501573

Information

• Patent Grant
• 2501573

• References
• Source

• Patent Number

  2,501,573

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1950
  75 years ago

• CPC

  • G11B15/32 - through the reels or cores on to which the record carrier is wound
  • B65H51/10 - with opposed co-acting surfaces
  • G11B25/08 - using filamentary record carriers

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 242 - Winding, tensioning, or guiding