3700337

Information

• Patent Grant
• 3700337

• References
• Source

• Patent Number

  3,700,337

• Date Filed

  Not available

• Date Issued

  Tuesday, October 24, 1972
  52 years ago

• CPC

  • G03B7/06 - by a follow-up movement of an associated reference mark to the pointer
  • G01J1/42 - using electric radiation detectors

• US Classifications

  • 356 - Optics: measuring and testing
  • 396 - Photography