US2320548A - Telephone system - Google Patents

Telephone system Download PDF

Info

Publication number
US2320548A
US2320548A US396237A US39623741A US2320548A US 2320548 A US2320548 A US 2320548A US 396237 A US396237 A US 396237A US 39623741 A US39623741 A US 39623741A US 2320548 A US2320548 A US 2320548A
Authority
US
United States
Prior art keywords
telephone system
telephone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US396237A
Inventor
John H Voss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Associated Electric Laboratories Inc
Original Assignee
Associated Electric Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Priority to US396237A priority Critical patent/US2320548A/en
Application granted granted Critical
Publication of US2320548A publication Critical patent/US2320548A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
US396237A 1941-05-31 1941-05-31 Telephone system Expired - Lifetime US2320548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US396237A US2320548A (en) 1941-05-31 1941-05-31 Telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US396237A US2320548A (en) 1941-05-31 1941-05-31 Telephone system

Publications (1)

Publication Number Publication Date
US2320548A true US2320548A (en) 1943-06-01

Family

ID=23566420

Family Applications (1)

Application Number Title Priority Date Filing Date
US396237A Expired - Lifetime US2320548A (en) 1941-05-31 1941-05-31 Telephone system

Country Status (1)

Country Link
US (1) US2320548A (en)

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