BE517928A - - Google Patents
Info
- Publication number
- BE517928A BE517928A BE517928DA BE517928A BE 517928 A BE517928 A BE 517928A BE 517928D A BE517928D A BE 517928DA BE 517928 A BE517928 A BE 517928A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB314778X | 1952-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE517928A true BE517928A (de) |
Family
ID=10323686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE517928D BE517928A (de) | 1952-02-25 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE517928A (de) |
| CH (1) | CH314778A (de) |
| DE (1) | DE972431C (de) |
| FR (1) | FR65072E (de) |
| GB (1) | GB700493A (de) |
| NL (2) | NL90114C (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE490579C (de) * | 1928-06-16 | 1930-01-30 | Siemens & Halske Akt Ges | Piezoelektrische Kristallanordnung |
| FR861808A (fr) * | 1939-08-02 | 1941-02-18 | Materiel Telephonique | éléments piezo-électriques |
| DE863521C (de) * | 1951-01-10 | 1953-01-19 | Sueddeutsche App Fabrik G M B | Piezoelektrisches Element |
-
0
- NL NLAANVRAGE7104976,A patent/NL174676B/xx unknown
- NL NL90114D patent/NL90114C/xx active
- BE BE517928D patent/BE517928A/xx unknown
-
1952
- 1952-02-25 GB GB4840/52A patent/GB700493A/en not_active Expired
-
1953
- 1953-02-22 DE DEI6947A patent/DE972431C/de not_active Expired
- 1953-02-25 FR FR65072D patent/FR65072E/fr not_active Expired
- 1953-02-25 CH CH314778D patent/CH314778A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB700493A (en) | 1953-12-02 |
| NL90114C (de) | |
| CH314778A (de) | 1956-06-30 |
| NL174676B (nl) | |
| DE972431C (de) | 1959-07-23 |
| FR65072E (fr) | 1956-01-26 |