2287742

Information

• Patent Grant
• 2287742

• References
• Source

• Patent Number

  2,287,742

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1942
  82 years ago

• CPC

  • G03B17/50 - with both developing and finishing apparatus
  • Y10T137/86099 - Hand pump

• US Classifications

  • 137 - Fluid handling
  • 396 - Photography