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FR577606A - New arrangement of cordless or cordless telephony receiver device - Google Patents

New arrangement of cordless or cordless telephony receiver device

Info

Publication number
FR577606A
FR577606A FR577606DA FR577606A FR 577606 A FR577606 A FR 577606A FR 577606D A FR577606D A FR 577606DA FR 577606 A FR577606 A FR 577606A
Authority
FR
France
Prior art keywords
cordless
receiver device
new arrangement
telephony receiver
cordless telephony
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
Cesare Parolini
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 FR577606A publication Critical patent/FR577606A/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
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
    • H04M1/2155—Acoustic coupling

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR577606D 1923-04-20 1923-04-20 New arrangement of cordless or cordless telephony receiver device Expired FR577606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR577606T 1923-04-20

Publications (1)

Publication Number Publication Date
FR577606A true FR577606A (en) 1924-09-08

Family

ID=8954844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR577606D Expired FR577606A (en) 1923-04-20 1923-04-20 New arrangement of cordless or cordless telephony receiver device

Country Status (1)

Country Link
FR (1) FR577606A (en)

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