FR747565A - Perfectionnements aux microtéléphones ou combinés - Google Patents

Perfectionnements aux microtéléphones ou combinés

Info

Publication number
FR747565A
FR747565A FR747565DA FR747565A FR 747565 A FR747565 A FR 747565A FR 747565D A FR747565D A FR 747565DA FR 747565 A FR747565 A FR 747565A
Authority
FR
France
Prior art keywords
microtelephones
handsets
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR747565A publication Critical patent/FR747565A/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
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR747565D 1931-12-30 1932-12-14 Perfectionnements aux microtéléphones ou combinés Expired FR747565A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE747565X 1931-12-30

Publications (1)

Publication Number Publication Date
FR747565A true FR747565A (fr) 1933-06-20

Family

ID=20323273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR747565D Expired FR747565A (fr) 1931-12-30 1932-12-14 Perfectionnements aux microtéléphones ou combinés

Country Status (2)

Country Link
BE (1) BE393093A (fr)
FR (1) FR747565A (fr)

Also Published As

Publication number Publication date
BE393093A (fr)

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