FR451938A - Device to record sounds and especially telephone conversations - Google Patents

Device to record sounds and especially telephone conversations

Info

Publication number
FR451938A
FR451938A FR451938DA FR451938A FR 451938 A FR451938 A FR 451938A FR 451938D A FR451938D A FR 451938DA FR 451938 A FR451938 A FR 451938A
Authority
FR
France
Prior art keywords
telephone conversations
record sounds
especially telephone
sounds
record
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
John Noll
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 FR451938A publication Critical patent/FR451938A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/02—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using cylindrical record carriers
FR451938D 1912-12-16 1912-12-16 Device to record sounds and especially telephone conversations Expired FR451938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR451938T 1912-12-16

Publications (1)

Publication Number Publication Date
FR451938A true FR451938A (en) 1913-05-02

Family

ID=1492218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR451938D Expired FR451938A (en) 1912-12-16 1912-12-16 Device to record sounds and especially telephone conversations

Country Status (1)

Country Link
FR (1) FR451938A (en)

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