FR652986A - Installation mode for the transmission of information via telephone lines - Google Patents

Installation mode for the transmission of information via telephone lines

Info

Publication number
FR652986A
FR652986A FR652986DA FR652986A FR 652986 A FR652986 A FR 652986A FR 652986D A FR652986D A FR 652986DA FR 652986 A FR652986 A FR 652986A
Authority
FR
France
Prior art keywords
transmission
information via
telephone lines
installation mode
via 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
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 AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR652986A publication Critical patent/FR652986A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
FR652986D 1927-12-20 1928-04-18 Installation mode for the transmission of information via telephone lines Expired FR652986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE302678T 1927-12-20

Publications (1)

Publication Number Publication Date
FR652986A true FR652986A (en) 1929-03-15

Family

ID=31894342

Family Applications (1)

Application Number Title Priority Date Filing Date
FR652986D Expired FR652986A (en) 1927-12-20 1928-04-18 Installation mode for the transmission of information via telephone lines

Country Status (3)

Country Link
FR (1) FR652986A (en)
GB (2) GB302678A (en)
NL (1) NL41927B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9601528D0 (en) * 1996-01-25 1996-03-27 Chignell Richard J Underground pipe locating system

Also Published As

Publication number Publication date
GB316148A (en) 1930-01-06
GB302678A (en) 1929-12-04
NL41927B (en)

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