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FR616047A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR616047A
FR616047A FR616047DA FR616047A FR 616047 A FR616047 A FR 616047A FR 616047D A FR616047D A FR 616047DA FR 616047 A FR616047 A FR 616047A
Authority
FR
France
Prior art keywords
telephone systems
telephone
systems
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR616047A publication Critical patent/FR616047A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR616047D 1925-05-14 1926-05-11 Improvements to telephone systems Expired FR616047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE616047X 1925-05-14

Publications (1)

Publication Number Publication Date
FR616047A true FR616047A (en) 1927-01-21

Family

ID=6576888

Family Applications (1)

Application Number Title Priority Date Filing Date
FR616047D Expired FR616047A (en) 1925-05-14 1926-05-11 Improvements to telephone systems

Country Status (1)

Country Link
FR (1) FR616047A (en)

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