FR779642A - Further development for electro-magnetic recording device - Google Patents

Further development for electro-magnetic recording device

Info

Publication number
FR779642A
FR779642A FR779642DA FR779642A FR 779642 A FR779642 A FR 779642A FR 779642D A FR779642D A FR 779642DA FR 779642 A FR779642 A FR 779642A
Authority
FR
France
Prior art keywords
electro
magnetic recording
recording device
further development
development
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
Henri Loubry
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 filed Critical
Application granted granted Critical
Publication of FR779642A publication Critical patent/FR779642A/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR779642D 1934-10-15 1934-10-15 Further development for electro-magnetic recording device Expired FR779642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR779642T 1934-10-15

Publications (1)

Publication Number Publication Date
FR779642A true FR779642A (en) 1935-04-10

Family

ID=9202860

Family Applications (1)

Application Number Title Priority Date Filing Date
FR779642D Expired FR779642A (en) 1934-10-15 1934-10-15 Further development for electro-magnetic recording device

Country Status (1)

Country Link
FR (1) FR779642A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418542A (en) * 1944-01-20 1947-04-08 Armour Res Found Magnetizing and erasing head arrangement for magnetic recorders
US2655562A (en) * 1945-02-23 1953-10-13 Stromberg Carlson Co Erasing head for magnetic recording

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418542A (en) * 1944-01-20 1947-04-08 Armour Res Found Magnetizing and erasing head arrangement for magnetic recorders
US2655562A (en) * 1945-02-23 1953-10-13 Stromberg Carlson Co Erasing head for magnetic recording

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