NL6913897A - - Google Patents
Info
- Publication number
- NL6913897A NL6913897A NL6913897A NL6913897A NL6913897A NL 6913897 A NL6913897 A NL 6913897A NL 6913897 A NL6913897 A NL 6913897A NL 6913897 A NL6913897 A NL 6913897A NL 6913897 A NL6913897 A NL 6913897A
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6913897A NL6913897A (enExample) | 1969-09-12 | 1969-09-12 | |
| DE19691948933 DE1948933A1 (de) | 1968-09-30 | 1969-09-27 | Wandler zur Umwandlung von akustischen Schwingungen in elektrische Schwingungen und umgekehrt in Form einer Schwingplatte mit mindestens einer Schicht aus piezoelektrischem Material |
| GB1226077D GB1226077A (enExample) | 1968-09-30 | 1969-09-29 | |
| FR6933265A FR2019219A1 (enExample) | 1968-09-30 | 1969-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6913897A NL6913897A (enExample) | 1969-09-12 | 1969-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6913897A true NL6913897A (enExample) | 1971-03-16 |
Family
ID=19807891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6913897A NL6913897A (enExample) | 1968-09-30 | 1969-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL6913897A (enExample) |
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1969
- 1969-09-12 NL NL6913897A patent/NL6913897A/xx unknown