CA1010529A - Ultrasonic-microwave doppler intrusion alarm system - Google Patents
Ultrasonic-microwave doppler intrusion alarm systemInfo
- Publication number
- CA1010529A CA1010529A CA259,166A CA259166A CA1010529A CA 1010529 A CA1010529 A CA 1010529A CA 259166 A CA259166 A CA 259166A CA 1010529 A CA1010529 A CA 1010529A
- Authority
- CA
- Canada
- Prior art keywords
- ultrasonic
- alarm system
- intrusion alarm
- microwave doppler
- doppler intrusion
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA259,166A CA1010529A (en) | 1972-07-20 | 1976-08-16 | Ultrasonic-microwave doppler intrusion alarm system |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00273596A US3801978A (en) | 1972-07-20 | 1972-07-20 | Ultrasonic-microwave doppler intrusion alarm system |
CA172,645A CA1005876A (en) | 1972-07-20 | 1973-05-29 | Ultrasonic-microwave doppler intrusion alarm system |
CA259,166A CA1010529A (en) | 1972-07-20 | 1976-08-16 | Ultrasonic-microwave doppler intrusion alarm system |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1010529A true CA1010529A (en) | 1977-05-17 |
Family
ID=27162819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA259,166A Expired CA1010529A (en) | 1972-07-20 | 1976-08-16 | Ultrasonic-microwave doppler intrusion alarm system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1010529A (en) |
-
1976
- 1976-08-16 CA CA259,166A patent/CA1010529A/en not_active Expired
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