3543660

Information

• Patent Grant
• 3543660

• References
• Source

• Patent Number

  3,543,660

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1970
  54 years ago

• CPC

  • G03B19/08 - with provision for alternative use with plates or cut-films
  • G03B3/00 - Focusing arrangements
  • G03B7/06 - by a follow-up movement of an associated reference mark to the pointer

• US Classifications

  • 396 - Photography