BE471355A - - Google Patents
Info
- Publication number
- BE471355A BE471355A BE471355DA BE471355A BE 471355 A BE471355 A BE 471355A BE 471355D A BE471355D A BE 471355DA BE 471355 A BE471355 A BE 471355A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- C03C3/23—Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron
-
- 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
- C03C3/253—Silica-free oxide glass compositions containing germanium
-
- 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
- Y10S501/903—Optical glass, e.g. silent on refractive index and/or ABBE number having refractive index less than 1.8 and ABBE number less than 70
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US644180A US2425403A (en) | 1946-01-29 | 1946-01-29 | Fluogermanate glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE471355A true BE471355A (pt) |
Family
ID=24583790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE471355D BE471355A (pt) | 1946-01-29 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2425403A (pt) |
| BE (1) | BE471355A (pt) |
| CH (1) | CH269120A (pt) |
| FR (1) | FR940166A (pt) |
| GB (1) | GB621979A (pt) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2573380A (en) * | 1943-05-07 | 1951-10-30 | Emi Ltd | Sealing cement for vacuum seals |
| US2659271A (en) * | 1950-02-23 | 1953-11-17 | Bell Telephone Labor Inc | Silicon-germanium objective lens |
| US3029152A (en) * | 1957-11-29 | 1962-04-10 | Pilkington Brothers Ltd | Optical glass |
| US3113877A (en) * | 1960-10-06 | 1963-12-10 | Int Resistance Co | Partially devitrified glasses |
-
0
- BE BE471355D patent/BE471355A/xx unknown
-
1946
- 1946-01-29 US US644180A patent/US2425403A/en not_active Expired - Lifetime
-
1947
- 1947-01-28 FR FR940166D patent/FR940166A/fr not_active Expired
- 1947-01-29 GB GB2808/47A patent/GB621979A/en not_active Expired
- 1947-01-29 CH CH269120D patent/CH269120A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH269120A (fr) | 1950-06-30 |
| FR940166A (fr) | 1948-12-06 |
| US2425403A (en) | 1947-08-12 |
| GB621979A (en) | 1949-04-25 |