3587421

Information

• Patent Grant
• 3587421

• References
• Source

• Patent Number

  3,587,421

• Date Filed

  Not available

• Date Issued

  Monday, June 28, 1971
  53 years ago

• CPC

  • G01J1/44 - Electric circuits
  • G03B7/04 - Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device

• US Classifications

  • 356 - Optics: measuring and testing
  • 324 - Electricity: measuring and testing