FR1046477A - Process making visible the modulations recorded on magnetic film - Google Patents

Process making visible the modulations recorded on magnetic film

Info

Publication number: FR1046477A
Authority: FR; France
Prior art keywords: modulations; recorded; magnetic film; process making; making visible
Prior art date: 1951-12-17
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

Inventor

Marie-Joseph-Antoine Hawadier

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.)

1951-12-17

Filing date

1951-12-17

Publication date

1953-12-07

1951-12-17 Application filed filed Critical

1953-12-07 Application granted granted Critical

1953-12-07 Publication of FR1046477A publication Critical patent/FR1046477A/en

Status Expired legal-status Critical Current

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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum

FR1046477D 1951-12-17 1951-12-17 Process making visible the modulations recorded on magnetic film Expired FR1046477A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR1046477T		1951-12-17

Publications (1)

Publication Number	Publication Date
FR1046477A true FR1046477A (en)	1953-12-07

Family

ID=9592318

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1046477D Expired FR1046477A (en)	1951-12-17	1951-12-17	Process making visible the modulations recorded on magnetic film

Country Status (1)

Country	Link
FR (1)	FR1046477A (en)

1951
- 1951-12-17 FR FR1046477D patent/FR1046477A/en not_active Expired

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