2408106

Information

• Patent Grant
• 2408106

• References
• Source

• Patent Number

  2,408,106

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1946
  78 years ago

• CPC

  • G08B5/28 - with hinged flap or arm

• US Classifications

  • 379 - Telephonic communications