AT116451B - Schallsignalvorrichtung. - Google Patents
Schallsignalvorrichtung.Info
- Publication number
- AT116451B AT116451B AT116451DA AT116451B AT 116451 B AT116451 B AT 116451B AT 116451D A AT116451D A AT 116451DA AT 116451 B AT116451 B AT 116451B
- Authority
- AT
- Austria
- Prior art keywords
- sound signal
- signal device
- sound
- signal
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE116451X | 1927-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT116451B true AT116451B (de) | 1930-02-25 |
Family
ID=5654706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT116451D AT116451B (de) | 1927-12-10 | 1928-11-28 | Schallsignalvorrichtung. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT116451B (de) |
-
1928
- 1928-11-28 AT AT116451D patent/AT116451B/de active
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