766225

Information

• Patent Grant
• 766225

• References
• Source

• Patent Number

  766,225

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1904
  120 years ago

• CPC

  • G11B3/0957 - using optical means for detecting the end of the recording or the desired point thereof

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 178 - Telegraphy
  • 400 - Typewriting machines