FR364162A - Microphonograph device - Google Patents

Microphonograph device

Info

Publication number
FR364162A
FR364162A FR364162DA FR364162A FR 364162 A FR364162 A FR 364162A FR 364162D A FR364162D A FR 364162DA FR 364162 A FR364162 A FR 364162A
Authority
FR
France
Prior art keywords
microphonograph
microphonograph 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
French (fr)
Inventor
Eugene Ducretet
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR364162A publication Critical patent/FR364162A/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
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR364162D 1906-03-12 1906-03-12 Microphonograph device Expired FR364162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR364162T 1906-03-12

Publications (1)

Publication Number Publication Date
FR364162A true FR364162A (en) 1906-08-16

Family

ID=1411522

Family Applications (1)

Application Number Title Priority Date Filing Date
FR364162D Expired FR364162A (en) 1906-03-12 1906-03-12 Microphonograph device

Country Status (1)

Country Link
FR (1) FR364162A (en)

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