FR522935A - Apparatus specially usable as relay, oscillograph, telegraph, telephone, automatic current or voltage regulator and other devices sensitive to variations in electrical voltage - Google Patents

Apparatus specially usable as relay, oscillograph, telegraph, telephone, automatic current or voltage regulator and other devices sensitive to variations in electrical voltage

Info

Publication number
FR522935A
FR522935A FR522935A FR522935DA FR522935A FR 522935 A FR522935 A FR 522935A FR 522935 A FR522935 A FR 522935A FR 522935D A FR522935D A FR 522935DA FR 522935 A FR522935 A FR 522935A
Authority
FR
France
Prior art keywords
oscillograph
telegraph
relay
telephone
variations
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
FR522935A
Other languages
French (fr)
Inventor
Knud Rahbek
Frederik Johnsen
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.)
FREDERIK JOHNSEN
Original Assignee
FREDERIK JOHNSEN
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 FREDERIK JOHNSEN filed Critical FREDERIK JOHNSEN
Application granted granted Critical
Publication of FR522935A publication Critical patent/FR522935A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H59/00—Electrostatic relays; Electro-adhesion relays
FR522935A 1919-03-12 1919-03-12 Apparatus specially usable as relay, oscillograph, telegraph, telephone, automatic current or voltage regulator and other devices sensitive to variations in electrical voltage Expired FR522935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR522935T 1919-03-12

Publications (1)

Publication Number Publication Date
FR522935A true FR522935A (en) 1921-08-09

Family

ID=8918246

Family Applications (1)

Application Number Title Priority Date Filing Date
FR522935A Expired FR522935A (en) 1919-03-12 1919-03-12 Apparatus specially usable as relay, oscillograph, telegraph, telephone, automatic current or voltage regulator and other devices sensitive to variations in electrical voltage

Country Status (1)

Country Link
FR (1) FR522935A (en)

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