BE725917A - - Google Patents
Info
- Publication number
- BE725917A BE725917A BE725917DA BE725917A BE 725917 A BE725917 A BE 725917A BE 725917D A BE725917D A BE 725917DA BE 725917 A BE725917 A BE 725917A
- 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
- C03C3/04—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
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/30—Time-delay networks
- H03H9/36—Time-delay networks with non-adjustable delay time
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69396967A | 1967-12-27 | 1967-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE725917A true BE725917A (xx) | 1969-05-29 |
Family
ID=24786875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE725917D BE725917A (xx) | 1967-12-27 | 1968-12-23 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3551129A (xx) |
| BE (1) | BE725917A (xx) |
| DE (1) | DE1816607A1 (xx) |
| FR (1) | FR1603905A (xx) |
| GB (1) | GB1254320A (xx) |
| NL (1) | NL6818545A (xx) |
| SE (1) | SE346526B (xx) |
-
1967
- 1967-12-27 US US693969A patent/US3551129A/en not_active Expired - Lifetime
-
1968
- 1968-12-17 SE SE17265/68A patent/SE346526B/xx unknown
- 1968-12-23 BE BE725917D patent/BE725917A/xx unknown
- 1968-12-23 DE DE19681816607 patent/DE1816607A1/de active Pending
- 1968-12-23 GB GB60968/68A patent/GB1254320A/en not_active Expired
- 1968-12-23 NL NL6818545A patent/NL6818545A/xx unknown
- 1968-12-24 FR FR1603905D patent/FR1603905A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1254320A (en) | 1971-11-17 |
| DE1816607A1 (de) | 1970-02-12 |
| SE346526B (xx) | 1972-07-10 |
| FR1603905A (xx) | 1971-06-14 |
| NL6818545A (xx) | 1969-07-01 |
| US3551129A (en) | 1970-12-29 |