2388240

Information

• Patent Grant
• 2388240

• References
• Source

• Patent Number

  2,388,240

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1945
  79 years ago

• CPC

  • G03B17/44 - Means for exchanging focusing screen and light sensitive material

• US Classifications

  • 355 - Photocopying
  • 396 - Photography