BE355577A - - Google Patents
Info
- Publication number
- BE355577A BE355577A BE355577DA BE355577A BE 355577 A BE355577 A BE 355577A BE 355577D A BE355577D A BE 355577DA BE 355577 A BE355577 A BE 355577A
- 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
- H04R11/02—Loudspeakers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- 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)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE682427X | 1928-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE355577A true BE355577A (fr) |
Family
ID=3877796
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE354610D BE354610A (fr) | 1928-09-29 | ||
| BE358577D BE358577A (fr) | 1928-09-29 | ||
| BE355577D BE355577A (fr) | 1928-09-29 |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE354610D BE354610A (fr) | 1928-09-29 | ||
| BE358577D BE358577A (fr) | 1928-09-29 |
Country Status (2)
| Country | Link |
|---|---|
| BE (3) | BE355577A (fr) |
| FR (1) | FR682427A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536823A (zh) * | 2020-11-24 | 2022-05-27 | 魏灵炯 | 一种扬声器振膜的生产工艺 |
-
0
- BE BE354610D patent/BE354610A/xx unknown
- BE BE358577D patent/BE358577A/xx unknown
- BE BE355577D patent/BE355577A/xx unknown
-
1929
- 1929-09-28 FR FR682427D patent/FR682427A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE358577A (fr) | |
| BE354610A (fr) | |
| FR682427A (fr) | 1930-05-27 |