2645737

Information

• Patent Grant
• 2645737

• References
• Source

• Patent Number

  2,645,737

• Date Filed

  Not available

• Date Issued

  Tuesday, July 14, 1953
  71 years ago

• CPC

  • A62D7/00 - Composition of materials for transparent parts of gas-masks, respirators, breathing bags, or helmets
  • A62B18/082 - Assembling eyepieces, lenses or vision-correction means in or on gas-masks
  • C09K3/18 - for application to surfaces to minimize adherence of ice, mist or water thereto Thawing or antifreeze materials for application to surfaces
  • H01J23/24 - Slow-wave structures

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices
  • 330 - Amplifiers
  • 333 - Wave transmission lines and networks