FR810205A - Improvements to telephone sets with microphone and receiver remote from the user - Google Patents

Improvements to telephone sets with microphone and receiver remote from the user

Info

Publication number
FR810205A
FR810205A FR810205DA FR810205A FR 810205 A FR810205 A FR 810205A FR 810205D A FR810205D A FR 810205DA FR 810205 A FR810205 A FR 810205A
Authority
FR
France
Prior art keywords
microphone
user
telephone sets
receiver remote
receiver
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
Hans Clemens Schmidt
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 FR810205A publication Critical patent/FR810205A/en
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)
FR810205D 1936-09-01 1936-09-01 Improvements to telephone sets with microphone and receiver remote from the user Expired FR810205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR810205T 1936-09-01

Publications (1)

Publication Number Publication Date
FR810205A true FR810205A (en) 1937-03-18

Family

ID=9254776

Family Applications (1)

Application Number Title Priority Date Filing Date
FR810205D Expired FR810205A (en) 1936-09-01 1936-09-01 Improvements to telephone sets with microphone and receiver remote from the user

Country Status (2)

Country Link
BE (1) BE417278A (en)
FR (1) FR810205A (en)

Also Published As

Publication number Publication date
BE417278A (en)

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