3407897

Information

• Patent Grant
• 3407897

• References
• Source

• Patent Number

  3,407,897

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1968
  56 years ago

• CPC

  • A63J5/10 - Arrangements for making visible or audible the words spoken
  • A63H33/00 - Other toys
  • A63J17/00 - Apparatus for performing colour-music
  • G01H9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means
  • G01H17/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
  • G09B23/14 - for acoustics
  • G09F19/02 - incorporating moving display members
  • G10K13/00 - Cones, diaphragms, or the like, for emitting or receiving sound in general

• US Classifications

  • 073 - Measuring and testing
  • 181 - Acoustics
  • 446 - Amusement devices: toys