3453920

Information

• Patent Grant
• 3453920

• References
• Source

• Patent Number

  3,453,920

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1969
  55 years ago

• CPC

  • G10H3/185 - in which the tones are picked up through the bridge structure
  • B06B1/0644 - using a single piezo-electric element
  • G10H2220/471 - at bottom
  • G10H2220/491 - Two or more transducers per string
  • G10H2220/525 - Piezoelectric transducers for vibration sensing or vibration excitation in the audio range Piezoelectric strain sensing
  • Y10S84/24 - Piezoelectrical transducers

• US Classifications

  • 084 - Music
  • 073 - Measuring and testing
  • 984 - Musical instruments