DE176033C - - Google Patents
Info
- Publication number
- DE176033C DE176033C DENDAT176033D DE176033DA DE176033C DE 176033 C DE176033 C DE 176033C DE NDAT176033 D DENDAT176033 D DE NDAT176033D DE 176033D A DE176033D A DE 176033DA DE 176033 C DE176033 C DE 176033C
- Authority
- DE
- Germany
- Prior art keywords
- microphone
- receiver
- diaphragm
- bulged
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012528 membrane Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000000644 propagated effect Effects 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
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE176033T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE176033C true DE176033C (OSRAM) |
Family
ID=5696040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT176033D Active DE176033C (OSRAM) |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE176033C (OSRAM) |
| FR (1) | FR363114A (OSRAM) |
-
0
- DE DENDAT176033D patent/DE176033C/de active Active
-
1906
- 1906-02-09 FR FR363114A patent/FR363114A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR363114A (fr) | 1906-07-21 |
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