3457426

Information

• Patent Grant
• 3457426

• References
• Source

• Patent Number

  3,457,426

• Date Filed

  Not available

• Date Issued

  Tuesday, July 22, 1969
  55 years ago

• CPC

  • G01L13/023 - using bellows
  • G01D5/34715 - Scale reading or illumination devices
  • G01L9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material by electric or magnetic means
  • G01L9/0088 - using photoelectric means

• US Classifications

  • 250 - Radiant energy