FR1079888A - Perfectionnement aux amplificateurs téléphoniques - Google Patents

Perfectionnement aux amplificateurs téléphoniques

Info

Publication number
FR1079888A
FR1079888A FR1079888DA FR1079888A FR 1079888 A FR1079888 A FR 1079888A FR 1079888D A FR1079888D A FR 1079888DA FR 1079888 A FR1079888 A FR 1079888A
Authority
FR
France
Prior art keywords
further training
telephone amplifiers
amplifiers
telephone
training
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
English (en)
French (fr)
Inventor
Albert Barok
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 FR1079888A publication Critical patent/FR1079888A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR1079888D 1953-03-25 1953-03-25 Perfectionnement aux amplificateurs téléphoniques Expired FR1079888A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1079888T 1953-03-25

Publications (1)

Publication Number Publication Date
FR1079888A true FR1079888A (fr) 1954-12-03

Family

ID=9609384

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1079888D Expired FR1079888A (fr) 1953-03-25 1953-03-25 Perfectionnement aux amplificateurs téléphoniques

Country Status (2)

Country Link
BE (1) BE527551A (xx)
FR (1) FR1079888A (xx)

Also Published As

Publication number Publication date
BE527551A (xx)

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