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
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
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- 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
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- 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
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- 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)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (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)
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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1938-07-30 |
Family
ID=25982006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428408D BE428408A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1937-06-18 | 1938-06-02 |
Country Status (5)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR959922A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1946-06-29 | 1950-04-07 | ||
| 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 |
| DE1232993B (de) * | 1955-02-12 | 1967-01-26 | Saint Gobain | Synthetische Glasmassen als Duengemittel, Duengemittelkomponente oder Traegerstoffe fuer Mikronaehrstoffe |
| DE1065997B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1955-02-12 | 1959-09-24 | ||
| 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 |
| 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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 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 |
-
1937
- 1937-06-18 DE DE1937I0058292 patent/DE688147C/de not_active Expired
- 1937-07-13 GB GB19393/37A patent/GB498049A/en not_active Expired
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1938
- 1938-06-02 BE BE428408D patent/BE428408A/xx unknown
- 1938-06-02 FR FR838807D patent/FR838807A/fr not_active Expired
- 1938-06-14 US US213722A patent/US2227082A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR838807A (fr) | 1939-03-16 |
| GB498049A (en) | 1939-01-03 |
| US2227082A (en) | 1940-12-31 |
| DE688147C (de) | 1940-02-14 |