3431052

Information

• Patent Grant
• 3431052

• References
• Source

• Patent Number

  3,431,052

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1969
  55 years ago

• CPC

  • G03B3/10 - Power-operated focusing
  • G03B27/34 - Means for automatic focusing therefor
  • G03B27/36 - by mechanical connections

• US Classifications

  • 355 - Photocopying