FR859259A - Tête d'extinction à contact unilatéral pour appareils d'enregistrement sonore magnétique - Google Patents

Tête d'extinction à contact unilatéral pour appareils d'enregistrement sonore magnétique

Info

Publication number
FR859259A
FR859259A FR859259DA FR859259A FR 859259 A FR859259 A FR 859259A FR 859259D A FR859259D A FR 859259DA FR 859259 A FR859259 A FR 859259A
Authority
FR
France
Prior art keywords
recording devices
sound recording
sided contact
magnetic sound
extinguisher head
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)
French (fr)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Application granted granted Critical
Publication of FR859259A publication Critical patent/FR859259A/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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/028—Magnetic recording digest

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
FR859259D 1938-08-24 1939-08-22 Tête d'extinction à contact unilatéral pour appareils d'enregistrement sonore magnétique Expired FR859259A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE212669X 1938-08-24

Publications (1)

Publication Number Publication Date
FR859259A true FR859259A (fr) 1940-12-14

Family

ID=5809258

Family Applications (1)

Application Number Title Priority Date Filing Date
FR859259D Expired FR859259A (fr) 1938-08-24 1939-08-22 Tête d'extinction à contact unilatéral pour appareils d'enregistrement sonore magnétique

Country Status (4)

Country Link
US (1) US2210770A (de)
CH (1) CH212669A (de)
FR (1) FR859259A (de)
NL (1) NL53432C (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427421A (en) * 1940-06-22 1947-09-16 Rieber Frank Apparatus and method for making and analyzing geophysical records
US2425857A (en) * 1943-09-24 1947-08-19 Walter C Barnes Apparatus for detecting flaws in rails
US2532803A (en) * 1945-01-09 1950-12-05 Gen Electric Magnetic recording, reproducing, and erasing apparatus
US2428002A (en) * 1945-03-09 1947-09-30 Edward L Barrett Wire type recording and reproducing apparatus
US2535481A (en) * 1946-10-15 1950-12-26 Brush Dev Co Demagnetizing apparatus for magnetic recorders
US2536029A (en) * 1946-12-05 1951-01-02 Armour Res Found Magnetic record member
US2655561A (en) * 1948-08-09 1953-10-13 Lawrence H Connell Apparatus for magnetic recording
US2666813A (en) * 1949-01-12 1954-01-19 Armour Res Found Magnetic duplicating method and means
US2635149A (en) * 1949-12-03 1953-04-14 Wilcox Gay Corp Erasing means for magnetic recorders
GB900652A (en) * 1957-11-06 1962-07-11 Emi Ltd Improvements in or relating to magnetic transducing heads
US3117065A (en) * 1959-09-02 1964-01-07 Magnetic Film And Tape Company Method and apparatus for making magnetic recording tape
US4043297A (en) * 1973-11-17 1977-08-23 Basf Aktiengesellschaft Device for the magnetic orientation of magnetic recording media

Also Published As

Publication number Publication date
CH212669A (de) 1940-12-15
US2210770A (en) 1940-08-06
NL53432C (de) 1900-01-01

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