3773898

Information

• Patent Grant
• 3773898

• References
• Source

• Patent Number

  3,773,898

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1973
  51 years ago

• CPC

  • H01G7/025 - having an inorganic dielectric
  • H01L41/18 - for piezo-electric or electrostrictive devices
  • H04R17/00 - Piezo-electric transducers Electrostrictive transducers
  • H04R17/04 - Gramophone pick-ups using a stylus Recorders using a stylus
  • H04R17/08 - signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 252 - Compositions
  • 310 - Electrical generator or motor structure
  • 359 - Optical: systems and elements