2755796

Information

• Patent Grant
• 2755796

• References
• Source

• Patent Number

  2,755,796

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1956
  68 years ago

• CPC

  • A61B7/04 - Electric stethoscopes
  • H04R19/00 - Electrostatic transducers
  • H04R19/06 - Gramophone pick-ups using a stylus Recorders using a stylus

• US Classifications

  • 600 - Surgery
  • 073 - Measuring and testing
  • 310 - Electrical generator or motor structure
  • 340 - Communications: electrical
  • 361 - Electricity: electrical systems and devices
  • 367 - Communications, electrical: acoustic wave systems and devices