1738624

Information

• Patent Grant
• 1738624

• References
• Source

• Patent Number

  1,738,624

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1929
  95 years ago

• CPC

  • H04M1/52 - Arrangements wherein a dial or equivalent is mechanically coupled to a line selector
  • H04M3/44 - Additional connecting arrangements for providing access to frequently-wanted subscribers
  • H04Q3/42 - Circuit arrangements for indirect selecting controlled by common circuits

• US Classifications

  • 379 - Telephonic communications