2311380

Information

• Patent Grant
• 2311380

• References
• Source

• Patent Number

  2,311,380

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1943
  81 years ago

• CPC

  • G04B47/025 - in musical instruments or loudspeakers
  • H01H43/022 - Bases; Housings; Mountings

• US Classifications

  • 455 - Telecommunications
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology