1509939

Information

• Patent Grant
• 1509939

• References
• Source

• Patent Number

  1,509,939

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1924
  100 years ago

• CPC

  • F16N29/02 - for influencing the supply of lubricant
  • Y10S261/37 - Modern pumps diaphragm
  • Y10T137/7876 - With external means for opposing bias

• US Classifications

  • 137 - Fluid handling
  • 092 - Expansible chamber devices
  • 261 - Gas and liquid contact apparatus