CA612820A - Intruder alarm system - Google Patents
Intruder alarm systemInfo
- Publication number
- CA612820A CA612820A CA612820A CA612820DA CA612820A CA 612820 A CA612820 A CA 612820A CA 612820 A CA612820 A CA 612820A CA 612820D A CA612820D A CA 612820DA CA 612820 A CA612820 A CA 612820A
- Authority
- CA
- Canada
- Prior art keywords
- alarm system
- intruder alarm
- intruder
- alarm
- 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
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA612820T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA612820A true CA612820A (en) | 1961-01-17 |
Family
ID=35855140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA612820A Expired CA612820A (en) | Intruder alarm system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA612820A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3056470A (en) * | 1959-04-09 | 1962-10-02 | Schweiz Wagons Aufzuegefab | Control system for elevators |
US3075617A (en) * | 1960-04-04 | 1963-01-29 | Schweiz Wagons Aufzuegefab | Safety means for the door of an elevator |
US3531792A (en) * | 1966-12-06 | 1970-09-29 | Samuel M Bagno | Alarm system using saturable contacts |
-
0
- CA CA612820A patent/CA612820A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3056470A (en) * | 1959-04-09 | 1962-10-02 | Schweiz Wagons Aufzuegefab | Control system for elevators |
US3075617A (en) * | 1960-04-04 | 1963-01-29 | Schweiz Wagons Aufzuegefab | Safety means for the door of an elevator |
US3531792A (en) * | 1966-12-06 | 1970-09-29 | Samuel M Bagno | Alarm system using saturable contacts |
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