3541941

Information

• Patent Grant
• 3541941

• References
• Source

• Patent Number

  3,541,941

• Date Filed

  Not available

• Date Issued

  Tuesday, November 24, 1970
  54 years ago

• CPC

  • G05D3/1409 - with dc amplifier chain
  • G02B7/08 - adapted to co-operate with a remote control mechanism
  • G03B17/14 - interchangeably
  • G03B17/42 - Interlocking between shutter operation and advance of film or change of plate or cut-film
  • G03B17/565 - Optical accessories
  • G05D3/14 - using an analogue comparing device

• US Classifications

  • 348 - Television
  • 396 - Photography