3672220

Information

• Patent Grant
• 3672220

• References
• Source

• Patent Number

  3,672,220

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1972
  52 years ago

• CPC

  • G01L9/0033 - Transmitting or indicating the displacement of bellows by electric, electro-mechanical, magnetic, or electro-magnetic means
  • G01L1/10 - by measuring variations of frequency of stressed vibrating elements
  • G01L1/162 - using piezo-electric resonators
  • G01L9/0008 - using vibrations
  • G01L9/0022 - of a piezoelectric element
  • G01L13/023 - using bellows

• US Classifications

  • 073 - Measuring and testing