3631776

Information

• Patent Grant
• 3631776

• References
• Source

• Patent Number

  3,631,776

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1972
  53 years ago

• CPC

  • G03B7/24 - automatically in accordance with markings or other means indicating film speed or kind of film on the magazine to be inserted in the camera
  • G03B7/0807 - Control circuits
  • G03B7/083 - for control of exposure time
  • G03B7/22 - in accordance with temperature or height

• US Classifications

  • 396 - Photography