2740342

Information

• Patent Grant
• 2740342

• References
• Source

• Patent Number

  2,740,342

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1956
  68 years ago

• CPC

  • G03B17/52 - of the Land type
  • Y10T74/20666 - Lever engaging
  • Y10T225/239 - Liquid-, gas-, or light-tight work passage

• US Classifications

  • 396 - Photography
  • 074 - Machine element or mechanism
  • 225 - Severing by tearing or breaking