BE721778A - - Google Patents
Info
- Publication number
- BE721778A BE721778A BE721778DA BE721778A BE 721778 A BE721778 A BE 721778A BE 721778D A BE721778D A BE 721778DA BE 721778 A BE721778 A BE 721778A
- Authority
- BE
- Belgium
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
- H04R11/00—Transducers of moving-armature or moving-core type
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67591767A | 1967-10-17 | 1967-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE721778A true BE721778A (en) | 1969-03-14 |
Family
ID=24712470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE721778D BE721778A (en) | 1967-10-17 | 1968-10-03 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE721778A (en) |
| DE (1) | DE1802771A1 (en) |
| NL (1) | NL6814719A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1117418B (en) * | 1979-08-01 | 1986-02-17 | Marcon Srl | IMPROVEMENT IN SOUND RE-PRODUCTION CAPSULES FOR HEARING AIDS |
-
1968
- 1968-10-03 BE BE721778D patent/BE721778A/xx unknown
- 1968-10-12 DE DE19681802771 patent/DE1802771A1/en active Pending
- 1968-10-15 NL NL6814719A patent/NL6814719A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6814719A (en) | 1969-04-21 |
| DE1802771A1 (en) | 1969-06-26 |