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FR416331A - Appareil microtéléphonique - Google Patents

Appareil microtéléphonique

Info

Publication number
FR416331A
FR416331A FR416331DA FR416331A FR 416331 A FR416331 A FR 416331A FR 416331D A FR416331D A FR 416331DA FR 416331 A FR416331 A FR 416331A
Authority
FR
France
Prior art keywords
microtelphone
microtelphone device
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)
Inventor
Carl Robert Lamm
Walter Axel Wilhelm Emanuel Hjorth
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.)
WALTER AXEL WILHELM EMANUEL HJ
Original Assignee
WALTER AXEL WILHELM EMANUEL HJ
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 WALTER AXEL WILHELM EMANUEL HJ filed Critical WALTER AXEL WILHELM EMANUEL HJ
Application granted granted Critical
Publication of FR416331A publication Critical patent/FR416331A/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)
FR416331D 1910-05-07 1910-05-07 Appareil microtéléphonique Expired FR416331A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR416331T 1910-05-07

Publications (1)

Publication Number Publication Date
FR416331A true FR416331A (fr) 1910-10-17

Family

ID=1459840

Family Applications (1)

Application Number Title Priority Date Filing Date
FR416331D Expired FR416331A (fr) 1910-05-07 1910-05-07 Appareil microtéléphonique

Country Status (1)

Country Link
FR (1) FR416331A (fr)

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