3910695

Information

• Patent Grant
• 3910695

• References
• Source

• Patent Number

  3,910,695

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1975
  49 years ago

• CPC

  • G11B7/0908 - for focusing only
  • G02B27/40 - Optical focusing aids
  • G03B3/06 - using movable reflectors to alter length of light path

• US Classifications

  • 353 - Optics: image projectors
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER