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FR632153A - Phone enhancements - Google Patents

Phone enhancements

Info

Publication number
FR632153A
FR632153A FR632153DA FR632153A FR 632153 A FR632153 A FR 632153A FR 632153D A FR632153D A FR 632153DA FR 632153 A FR632153 A FR 632153A
Authority
FR
France
Prior art keywords
enhancements
phone
phone enhancements
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
Application number
Other languages
French (fr)
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 Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
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 Telephone and Telegraph Co filed Critical Associated Telephone and Telegraph Co
Application granted granted Critical
Publication of FR632153A publication Critical patent/FR632153A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
FR632153D 1926-04-08 1927-04-05 Phone enhancements Expired FR632153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US100494A US1760851A (en) 1926-04-08 1926-04-08 Automatic telephone system

Publications (1)

Publication Number Publication Date
FR632153A true FR632153A (en) 1928-01-04

Family

ID=22280047

Family Applications (1)

Application Number Title Priority Date Filing Date
FR632153D Expired FR632153A (en) 1926-04-08 1927-04-05 Phone enhancements

Country Status (3)

Country Link
US (1) US1760851A (en)
FR (1) FR632153A (en)
GB (1) GB269152A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654807A (en) * 1943-05-05 1953-10-06 American Telephone & Telegraph Marker for allotting a link and a sender

Also Published As

Publication number Publication date
US1760851A (en) 1930-05-27
GB269152A (en) 1928-06-21

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