FR740606A - Perfectionnements aux télégraphones - Google Patents

Perfectionnements aux télégraphones

Info

Publication number
FR740606A
FR740606A FR740606DA FR740606A FR 740606 A FR740606 A FR 740606A FR 740606D A FR740606D A FR 740606DA FR 740606 A FR740606 A FR 740606A
Authority
FR
France
Prior art keywords
telegraphone
telegraphone improvements
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.)
BRITISH BLATTNERPHONE STILLE S
Original Assignee
BRITISH BLATTNERPHONE STILLE S
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 BRITISH BLATTNERPHONE STILLE S filed Critical BRITISH BLATTNERPHONE STILLE S
Application granted granted Critical
Publication of FR740606A publication Critical patent/FR740606A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
FR740606D 1931-07-30 1932-07-29 Perfectionnements aux télégraphones Expired FR740606A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE740606X 1931-07-30

Publications (1)

Publication Number Publication Date
FR740606A true FR740606A (fr) 1933-01-30

Family

ID=6643865

Family Applications (1)

Application Number Title Priority Date Filing Date
FR740606D Expired FR740606A (fr) 1931-07-30 1932-07-29 Perfectionnements aux télégraphones

Country Status (1)

Country Link
FR (1) FR740606A (fr)

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