3643562

Information

• Patent Grant
• 3643562

• References
• Source

• Patent Number

  3,643,562

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • G03B9/22 - each moving in one direction to open and then in opposite direction to close
  • G03B7/12 - a hand-actuated member moved from one position to another providing the energy to move the setting member

• US Classifications

  • 396 - Photography