3622729

Information

• Patent Grant
• 3622729

• References
• Source

• Patent Number

  3,622,729

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1971
  53 years ago

• CPC

  • G10H1/344 - Structural association with individual keys
  • H01H13/70 - having a plurality of operating members associated with different sets of contacts
  • G10H2220/291 - with four or more contacts, switches or sensor triggering levels along the key kinematic path

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 984 - Musical instruments