CH247563A - Lautsprech-Telephonanlage. - Google Patents

Lautsprech-Telephonanlage.

Info

Publication number
CH247563A
CH247563A CH247563DA CH247563A CH 247563 A CH247563 A CH 247563A CH 247563D A CH247563D A CH 247563DA CH 247563 A CH247563 A CH 247563A
Authority
CH
Switzerland
Prior art keywords
telephone system
loudspeaker telephone
loudspeaker
telephone
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Ag Standard Telephon Und Radio
Original Assignee
Standard Telephon & Radio 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 Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH247563A publication Critical patent/CH247563A/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
CH247563D 1943-02-18 1944-02-18 Lautsprech-Telephonanlage. CH247563A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL247563X 1943-02-18

Publications (1)

Publication Number Publication Date
CH247563A true CH247563A (de) 1947-03-15

Family

ID=19780914

Family Applications (1)

Application Number Title Priority Date Filing Date
CH247563D CH247563A (de) 1943-02-18 1944-02-18 Lautsprech-Telephonanlage.

Country Status (4)

Country Link
BE (1) BE454425A (en, 2012)
CH (1) CH247563A (en, 2012)
FR (1) FR904080A (en, 2012)
NL (1) NL58180C (en, 2012)

Also Published As

Publication number Publication date
FR904080A (fr) 1945-10-25
BE454425A (en, 2012)
NL58180C (en, 2012)

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