1948579

Information

• Patent Grant
• 1948579

• References
• Source

• Patent Number

  1,948,579

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1934
  91 years ago

• CPC

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

• US Classifications

  • 396 - Photography