3684830

Information

• Patent Grant
• 3684830

• References
• Source

• Patent Number

  3,684,830

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1972
  52 years ago

• CPC

  • H03F3/183 - with semiconductor devices only
  • H01C10/48 - including contact movable in an arcuate path
  • H04R25/60 - Mounting, assembling or interconnection of hearing aid parts
  • H01H9/0271 - structurally combining a switch and an electronic component
  • H01H19/001 - Thumb wheel switches
  • H01H19/03 - Means for limiting the angle of rotation of the operating part
  • H01H2300/004 - Application hearing aid
  • H04R2225/61 - Aspects relating to mechanical or electronic switches or control elements in hearing aids

• US Classifications

  • 381 - Electrical audio signal processing systems and devices
  • 200 - Electricity: circuit makers and breakers