BE471728A - - Google Patents
Info
- Publication number
- BE471728A BE471728A BE471728DA BE471728A BE 471728 A BE471728 A BE 471728A BE 471728D A BE471728D A BE 471728DA BE 471728 A BE471728 A BE 471728A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB643845A GB594151A (en) | 1945-03-14 | 1945-03-14 | Improvements in or relating to electrical pick-ups for gramophones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE471728A true BE471728A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=9814483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE471728D BE471728A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1945-03-14 |
Country Status (3)
-
0
- BE BE471728D patent/BE471728A/xx unknown
-
1945
- 1945-03-14 GB GB643845A patent/GB594151A/en not_active Expired
-
1946
- 1946-06-07 FR FR927744D patent/FR927744A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB594151A (en) | 1947-11-04 |
| FR927744A (fr) | 1947-11-07 |