FR814043A - Improvements to telephone connections by loudspeaker stations - Google Patents

Improvements to telephone connections by loudspeaker stations

Info

Publication number
FR814043A
FR814043A FR814043DA FR814043A FR 814043 A FR814043 A FR 814043A FR 814043D A FR814043D A FR 814043DA FR 814043 A FR814043 A FR 814043A
Authority
FR
France
Prior art keywords
telephone connections
loudspeaker stations
loudspeaker
stations
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)
Inventor
Levy
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 filed Critical
Application granted granted Critical
Publication of FR814043A publication Critical patent/FR814043A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
FR814043D 1936-02-20 1936-02-20 Improvements to telephone connections by loudspeaker stations Expired FR814043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR814043T 1936-02-20

Publications (1)

Publication Number Publication Date
FR814043A true FR814043A (en) 1937-06-14

Family

ID=9266519

Family Applications (1)

Application Number Title Priority Date Filing Date
FR814043D Expired FR814043A (en) 1936-02-20 1936-02-20 Improvements to telephone connections by loudspeaker stations

Country Status (1)

Country Link
FR (1) FR814043A (en)

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