1977921

Information

• Patent Grant
• 1977921

• References
• Source

• Patent Number

  1,977,921

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1934
  90 years ago

• CPC

  • F16T1/14 - involving a piston, diaphragm, or bellows
  • Y10T137/3056 - Weight or pressure

• US Classifications

  • 137 - Fluid handling