3331991

Information

• Patent Grant
• 3331991

• References
• Source

• Patent Number

  3,331,991

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1967
  57 years ago

• CPC

  • H01R29/00 - Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits
  • H01H67/22 - Switches without multi-position wipers
  • H01H67/26 - Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement
  • H01H67/32 - having a multiplicity of interdependent armatures operated in succession by a single coil and each controlling one contact or set of contacts
  • H01R23/68 - for connection to or between printed circuits; Non printed connecting arrangements of printed circuit boards (PCB's)
  • H04H60/04 - Studio equipment Interconnection of studios

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 333 - Wave transmission lines and networks