2117002

Information

• Patent Grant
• 2117002

• References
• Source

• Patent Number

  2,117,002

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1938
  87 years ago

• CPC

  • G10H1/344 - Structural association with individual keys
  • G10C3/12 - Keyboards Keys
  • G10H2220/291 - with four or more contacts, switches or sensor triggering levels along the key kinematic path

• US Classifications

  • 084 - Music