CA1274930A - Systeme personnel d'alarme active sans recours aux mains de l'utilisateur - Google Patents
Systeme personnel d'alarme active sans recours aux mains de l'utilisateurInfo
- Publication number
- CA1274930A CA1274930A CA000545221A CA545221A CA1274930A CA 1274930 A CA1274930 A CA 1274930A CA 000545221 A CA000545221 A CA 000545221A CA 545221 A CA545221 A CA 545221A CA 1274930 A CA1274930 A CA 1274930A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- subscriber
- speakerphone
- telephone
- producing
- 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 - Lifetime
Links
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US920,240 | 1986-10-17 | ||
US06/920,240 US4760593A (en) | 1985-05-16 | 1986-10-17 | Personal alarm system providing handsfree operation |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1274930A true CA1274930A (fr) | 1990-10-02 |
Family
ID=25443410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000545221A Expired - Lifetime CA1274930A (fr) | 1986-10-17 | 1987-08-24 | Systeme personnel d'alarme active sans recours aux mains de l'utilisateur |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1274930A (fr) |
-
1987
- 1987-08-24 CA CA000545221A patent/CA1274930A/fr not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |