FR341035A - Microtéléphone - Google Patents
MicrotéléphoneInfo
- Publication number
- FR341035A FR341035A FR341035A FR341035DA FR341035A FR 341035 A FR341035 A FR 341035A FR 341035 A FR341035 A FR 341035A FR 341035D A FR341035D A FR 341035DA FR 341035 A FR341035 A FR 341035A
- Authority
- FR
- France
- Prior art keywords
- microphone
- 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.)
- Expired
Links
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)
- Telephone Set Structure (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR341035T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR341035A true FR341035A (fr) | 1904-07-27 |
Family
ID=8891865
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR4645A Expired FR4645E (fr) | Microtéléphone | ||
| FR341035A Expired FR341035A (fr) | 1904-03-08 | Microtéléphone |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR4645A Expired FR4645E (fr) | Microtéléphone |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE171536C (enrdf_load_stackoverflow) |
| FR (2) | FR341035A (enrdf_load_stackoverflow) |
-
0
- FR FR4645A patent/FR4645E/fr not_active Expired
- DE DENDAT171536D patent/DE171536C/de active Active
-
1904
- 1904-03-08 FR FR341035A patent/FR341035A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR4645E (fr) | 1905-09-02 |
| DE171536C (enrdf_load_stackoverflow) |
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