BE428408A - - Google Patents

Info

Publication number
BE428408A
BE428408A BE428408DA BE428408A BE 428408 A BE428408 A BE 428408A BE 428408D A BE428408D A BE 428408DA BE 428408 A BE428408 A BE 428408A
Authority
BE
Belgium
Application number
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
Publication of BE428408A publication Critical patent/BE428408A/xx

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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/335—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only with saturated jig, e.g. for detecting second harmonic; balanced flux head
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/16—Silica-free oxide glass compositions containing phosphorus
    • C03C3/19—Silica-free oxide glass compositions containing phosphorus containing boron
    • 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
    • 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
    • Y10S501/00—Compositions: ceramic
    • Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
BE428408D 1937-06-18 1938-06-02 BE428408A (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1937I0058292 DE688147C (de) 1937-06-18 1937-06-18 Phosphatglaeser
GB19393/37A GB498049A (en) 1937-06-18 1937-07-13 Improvements in phosphate glass

Publications (1)

Publication Number Publication Date
BE428408A true BE428408A (xx) 1938-07-30

Family

ID=25982006

Family Applications (1)

Application Number Title Priority Date Filing Date
BE428408D BE428408A (xx) 1937-06-18 1938-06-02

Country Status (5)

Country Link
US (1) US2227082A (xx)
BE (1) BE428408A (xx)
DE (1) DE688147C (xx)
FR (1) FR838807A (xx)
GB (1) GB498049A (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE474236A (xx) * 1946-06-29
US2506163A (en) * 1948-07-20 1950-05-02 Norton Co Diamond abrasive wheel
DE960435C (de) * 1953-02-06 1957-03-21 Carborundum Co Schleifkoerper aus geschmolzenen Tonerdekoernern und Verfahren zu ihrer Herstellung
DE1065996B (de) * 1955-02-12 1959-09-24 Societe Anonyme des Manufactures des Glaces et Produits Chimiques de Saint-Gobain, Chauny S. Cirey, Paris Alkali-Phosphorsäure-Tonerde-Gläser
DE1065997B (xx) * 1955-02-12 1959-09-24
DE1232993B (de) * 1955-02-12 1967-01-26 Saint Gobain Synthetische Glasmassen als Duengemittel, Duengemittelkomponente oder Traegerstoffe fuer Mikronaehrstoffe
US2866713A (en) * 1956-04-03 1958-12-30 Du Pont Vitreous phosphate enamels and their use
FR1152757A (fr) * 1956-05-25 1958-02-25 Saint Gobain Compositions de verres alcalino-phosphoriques alumineux
US2946694A (en) * 1958-06-02 1960-07-26 Lof Glass Fibers Co Glass composition
BE611163A (xx) * 1960-12-08
DE2262073C3 (de) * 1972-12-19 1978-04-06 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Anorganisches energieauflösendes Detektormaterial auf der Basis eines Pj O5 -Al2 O3 -ZnO-Glases und seine Verwendung
USRE30141E (en) * 1972-12-19 1979-11-06 Ernst Leitz Wetzlar Gmbh Inorganic vitreous detector material
DE2739836C2 (de) * 1977-09-03 1986-04-03 Deutsche Itt Industries Gmbh, 7800 Freiburg Biologisch aktives Mittel mit langsamer Wirkstofffreigabe

Also Published As

Publication number Publication date
GB498049A (en) 1939-01-03
DE688147C (de) 1940-02-14
US2227082A (en) 1940-12-31
FR838807A (fr) 1939-03-16

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