BE639542A - - Google Patents
Info
- Publication number
- BE639542A BE639542A BE639542DA BE639542A BE 639542 A BE639542 A BE 639542A BE 639542D A BE639542D A BE 639542DA BE 639542 A BE639542 A BE 639542A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/30—Time-delay networks
- H03H9/36—Time-delay networks with non-adjustable delay time
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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
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
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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
- C03C4/00—Compositions for glass with special properties
- C03C4/0057—Compositions for glass with special properties for ultrasonic delay lines glass
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)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Glass Compositions (AREA)
- Compositions Of Oxide Ceramics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24144062A | 1962-11-30 | 1962-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE639542A true BE639542A (en:Method) |
Family
ID=22910709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE639542D BE639542A (en:Method) | 1962-11-30 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE639542A (en:Method) |
| DE (1) | DE1219602B (en:Method) |
| GB (1) | GB990849A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1596845B1 (de) * | 1966-12-07 | 1970-10-22 | Jenaer Glaswerk Schott & Gen | Glas mit kleinem Temperaturkoeffizienten der Laufze it fuer Ultraschallwellen |
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0
- BE BE639542D patent/BE639542A/xx unknown
-
1963
- 1963-10-12 DE DEW35413A patent/DE1219602B/de active Pending
- 1963-11-28 GB GB4702763A patent/GB990849A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB990849A (en) | 1965-05-05 |
| DE1219602B (de) | 1966-06-23 |