3864977

Information

• Patent Grant
• 3864977

• References
• Source

• Patent Number

  3,864,977

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1975
  50 years ago

• CPC

  • B63C11/02 - Divers' equipment
  • G01L7/041 - Construction or mounting of deformable tubes
  • G01L7/043 - with mechanical transmitting or indicating means
  • G01L13/021 - using deformable tubes
  • G01L13/025 - using diaphragms
  • G04B47/06 - with attached measuring instruments

• US Classifications

  • 073 - Measuring and testing