FR1010022A - Helical exploration magnetic dictation machine - Google Patents

Helical exploration magnetic dictation machine

Info

Publication number
FR1010022A
FR1010022A FR1010022DA FR1010022A FR 1010022 A FR1010022 A FR 1010022A FR 1010022D A FR1010022D A FR 1010022DA FR 1010022 A FR1010022 A FR 1010022A
Authority
FR
France
Prior art keywords
helical
dictation machine
exploration
magnetic
exploration magnetic
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
Marcel Meunier
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.)
ACEC
Umicore NV SA
Original Assignee
ACEC
Ateliers de Constructions Electriques de Charleroi SA
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 ACEC, Ateliers de Constructions Electriques de Charleroi SA filed Critical ACEC
Application granted granted Critical
Publication of FR1010022A publication Critical patent/FR1010022A/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • 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
    • G11B5/004—Recording on, or reproducing or erasing from, magnetic drums
FR1010022D 1948-07-22 1948-07-22 Helical exploration magnetic dictation machine Expired FR1010022A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1010022T 1948-07-22

Publications (1)

Publication Number Publication Date
FR1010022A true FR1010022A (en) 1952-06-06

Family

ID=9568682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1010022D Expired FR1010022A (en) 1948-07-22 1948-07-22 Helical exploration magnetic dictation machine

Country Status (3)

Country Link
CA (1) CA565624A (en)
FR (1) FR1010022A (en)
GB (1) GB660180A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117860Y1 (en) * 1972-05-02 1976-05-13

Also Published As

Publication number Publication date
CA565624A (en) 1958-11-04
GB660180A (en) 1951-10-31

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