Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1985-10-28
1988-08-16
Kemper, Catherine E.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D02972212
REFERENCES:
patent: 3818472 (1974-06-01), Mauk et al.
Sentrie AT Security System offered by DelNorte Security Systems.
Metor 118.
Sirch-Gate, IV Model SMD20000HD.
Sirch-Gate III Model SMD2000W.
Federal Labs CheckGates Model Nos. 6080, 6080HD, 6085 and 6090.
Sirchie Model SMD 1000W Metal Detection System.
Sirch-Gate (.TM.) Metal Detection System.
Ion Track Instruments, Inc. Model MD-1 Walk Thru Metal Detector.
Outokumpu Model Metor 118 Walk-through Metal Detector.
Sentrie Model FS 3 General Purpose Metal and Weapons Detector.
Federal Labs Systems Model Checkgate (.TM.) Walkthrough Metal Detection System.
Garrett Electronics, Inc.
Kemper Catherine E.
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