BE365744A - - Google Patents
Info
- Publication number
- BE365744A BE365744A BE365744DA BE365744A BE 365744 A BE365744 A BE 365744A BE 365744D A BE365744D A BE 365744DA BE 365744 A BE365744 A BE 365744A
- Authority
- BE
- Belgium
- Prior art keywords
- fork
- telephone
- rod
- induction coil
- intensifier
- Prior art date
Links
- 230000006698 induction Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 240000001973 Ficus microcarpa Species 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
- H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
- H04M1/2155—Acoustic coupling
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE365744A true BE365744A (https=) |
Family
ID=37998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE365744D BE365744A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE365744A (https=) |
-
0
- BE BE365744D patent/BE365744A/fr unknown
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