FR518597A - Device for strengthening telephone currents and other electrical oscillations - Google Patents

Device for strengthening telephone currents and other electrical oscillations

Info

Publication number
FR518597A
FR518597A FR518597A FR518597DA FR518597A FR 518597 A FR518597 A FR 518597A FR 518597 A FR518597 A FR 518597A FR 518597D A FR518597D A FR 518597DA FR 518597 A FR518597 A FR 518597A
Authority
FR
France
Prior art keywords
strengthening
electrical oscillations
telephone currents
currents
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
FR518597A
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.)
TELEGRAPHON GmbH
Original Assignee
TELEGRAPHON GmbH
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 TELEGRAPHON GmbH filed Critical TELEGRAPHON GmbH
Application granted granted Critical
Publication of FR518597A publication Critical patent/FR518597A/en
Expired legal-status Critical Current

Links

FR518597A 1917-04-20 1919-06-05 Device for strengthening telephone currents and other electrical oscillations Expired FR518597A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE518597X 1917-04-20

Publications (1)

Publication Number Publication Date
FR518597A true FR518597A (en) 1921-05-27

Family

ID=43498543

Family Applications (1)

Application Number Title Priority Date Filing Date
FR518597A Expired FR518597A (en) 1917-04-20 1919-06-05 Device for strengthening telephone currents and other electrical oscillations

Country Status (1)

Country Link
FR (1) FR518597A (en)

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