3888233

Information

• Patent Grant
• 3888233

• References
• Source

• Patent Number

  3,888,233

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1975
  49 years ago

• CPC

  • A63H3/28 - Arrangements of sound-producing means in dolls Means in dolls for producing sounds
  • A61M21/00 - Other devices or methods to cause a change in the state of consciousness Devices for producing or ending sleep by mechanical, optical, or acoustical means
  • A63H3/001 - simulating physiological processes
  • H03K3/2828 - in an asymmetrical circuit configuration
  • H03K3/64 - Generators producing trains of pulses
  • A61M2021/0027 - by the hearing sense
  • A61M2021/0061 - Simulated heartbeat pulsed or modulated

• US Classifications

  • 600 - Surgery
  • 331 - Oscillators
  • 446 - Amusement devices: toys