DE235087C - - Google Patents
Info
- Publication number
- DE235087C DE235087C DENDAT235087D DE235087DA DE235087C DE 235087 C DE235087 C DE 235087C DE NDAT235087 D DENDAT235087 D DE NDAT235087D DE 235087D A DE235087D A DE 235087DA DE 235087 C DE235087 C DE 235087C
- Authority
- DE
- Germany
- Prior art keywords
- battery
- microphone
- hook
- handset
- springs
- 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
- 230000006698 induction Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 241000947840 Alteromonadales Species 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/12—Calling substations, e.g. by ringing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE235087T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE235087C true DE235087C (en:Method) |
Family
ID=5895033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT235087D Active DE235087C (en:Method) |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE235087C (en:Method) |
| FR (1) | FR420816A (en:Method) |
-
0
- DE DENDAT235087D patent/DE235087C/de active Active
-
1910
- 1910-09-27 FR FR420816A patent/FR420816A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR420816A (fr) | 1911-02-08 |
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