FR744806A - - Google Patents
Info
- Publication number
- FR744806A FR744806A FR744806DA FR744806A FR 744806 A FR744806 A FR 744806A FR 744806D A FR744806D A FR 744806DA FR 744806 A FR744806 A FR 744806A
- Authority
- FR
- France
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US572460A US1935912A (en) | 1931-11-02 | 1931-11-02 | Telephone set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR744806A true FR744806A (en) | 1933-04-27 |
Family
ID=24287895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR744806D Expired FR744806A (en) | 1931-11-02 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1935912A (en) |
| FR (1) | FR744806A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3532836A (en) * | 1968-08-21 | 1970-10-06 | Robert M Rood | Auxiliary telephone support |
-
0
- FR FR744806D patent/FR744806A/fr not_active Expired
-
1931
- 1931-11-02 US US572460A patent/US1935912A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1935912A (en) | 1933-11-21 |