NL90114C - - Google Patents
Info
- Publication number
- NL90114C NL90114C NL90114DA NL90114C NL 90114 C NL90114 C NL 90114C NL 90114D A NL90114D A NL 90114DA NL 90114 C NL90114 C NL 90114C
- Authority
- NL
- Netherlands
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 |
|---|---|
| NL90114C true NL90114C (ja) |
Family
ID=10323686
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7104976,A NL174676B (nl) | 1952-02-25 | Spiegelreflexcamera. | |
| NL90114D NL90114C (ja) | 1952-02-25 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7104976,A NL174676B (nl) | 1952-02-25 | Spiegelreflexcamera. |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE517928A (ja) |
| CH (1) | CH314778A (ja) |
| DE (1) | DE972431C (ja) |
| FR (1) | FR65072E (ja) |
| GB (1) | GB700493A (ja) |
| NL (2) | NL90114C (ja) |
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 |
| CH314778A (de) | 1956-06-30 |
| NL174676B (nl) | |
| BE517928A (ja) | |
| DE972431C (de) | 1959-07-23 |
| FR65072E (fr) | 1956-01-26 |