FR477931A - Transmitter device for electric telegraph apparatus - Google Patents

Transmitter device for electric telegraph apparatus

Info

Publication number
FR477931A
FR477931A FR477931DA FR477931A FR 477931 A FR477931 A FR 477931A FR 477931D A FR477931D A FR 477931DA FR 477931 A FR477931 A FR 477931A
Authority
FR
France
Prior art keywords
transmitter device
telegraph apparatus
electric telegraph
electric
transmitter
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)
Inventor
Emil Henrik Widegren
Klas August Widegren
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR477931A publication Critical patent/FR477931A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C21/00—Systems for transmitting the position of an object with respect to a predetermined reference system, e.g. tele-autographic system

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR477931D 1912-12-30 1913-12-30 Transmitter device for electric telegraph apparatus Expired FR477931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE477931X 1912-12-30

Publications (1)

Publication Number Publication Date
FR477931A true FR477931A (en) 1915-11-17

Family

ID=1515517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR477931D Expired FR477931A (en) 1912-12-30 1913-12-30 Transmitter device for electric telegraph apparatus

Country Status (1)

Country Link
FR (1) FR477931A (en)

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