FR2145238A5 - - Google Patents
Info
- Publication number
- FR2145238A5 FR2145238A5 FR7224157A FR7224157A FR2145238A5 FR 2145238 A5 FR2145238 A5 FR 2145238A5 FR 7224157 A FR7224157 A FR 7224157A FR 7224157 A FR7224157 A FR 7224157A FR 2145238 A5 FR2145238 A5 FR 2145238A5
- Authority
- FR
- France
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- 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
-
- 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
- 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
- C03C3/105—Glass compositions containing silica with 40% to 90% silica, by weight containing lead containing aluminium
-
- 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)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Glass Compositions (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4960271A JPS528331B1 (ja) | 1971-07-07 | 1971-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2145238A5 true FR2145238A5 (ja) | 1973-02-16 |
Family
ID=12835768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7224157A Expired FR2145238A5 (ja) | 1971-07-07 | 1972-07-04 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS528331B1 (ja) |
FR (1) | FR2145238A5 (ja) |
GB (1) | GB1354229A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2358648A1 (de) * | 1973-11-24 | 1975-06-05 | Asahi Glass Co Ltd | Roentgenstrahlen absorbierendes glas und verwendung desselben |
EP0538568A1 (en) * | 1991-10-24 | 1993-04-28 | Corning Incorporated | Lead silicate glasses |
-
1971
- 1971-07-07 JP JP4960271A patent/JPS528331B1/ja active Pending
-
1972
- 1972-07-04 FR FR7224157A patent/FR2145238A5/fr not_active Expired
- 1972-07-06 GB GB3176372A patent/GB1354229A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2358648A1 (de) * | 1973-11-24 | 1975-06-05 | Asahi Glass Co Ltd | Roentgenstrahlen absorbierendes glas und verwendung desselben |
EP0538568A1 (en) * | 1991-10-24 | 1993-04-28 | Corning Incorporated | Lead silicate glasses |
Also Published As
Publication number | Publication date |
---|---|
JPS528331B1 (ja) | 1977-03-08 |
GB1354229A (en) | 1974-06-05 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |