2561481

Information

• Patent Grant
• 2561481

• References
• Source

• Patent Number

  2,561,481

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1951
  73 years ago

• CPC

  • A61F11/00 - Methods or devices for treatment of the ears
  • G04B25/005 - in alarm clocks
  • G04C21/20 - by closing a contact to ring an electro-mechanical alarm
  • Y10S5/915 - with vibrating means

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 005 - Beds
  • 968 - Horology