CH34631A - Sprechuhr - Google Patents
SprechuhrInfo
- Publication number
- CH34631A CH34631A CH34631A CH34631DA CH34631A CH 34631 A CH34631 A CH 34631A CH 34631 A CH34631 A CH 34631A CH 34631D A CH34631D A CH 34631DA CH 34631 A CH34631 A CH 34631A
- Authority
- CH
- Switzerland
- Prior art keywords
- intercom
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B21/00—Indicating the time by acoustic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH34631T | 1905-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH34631A true CH34631A (de) | 1906-05-15 |
Family
ID=4256472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH34631A CH34631A (de) | 1905-06-17 | 1905-06-17 | Sprechuhr |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH34631A (de) |
-
1905
- 1905-06-17 CH CH34631A patent/CH34631A/de unknown
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