Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1987-11-16
1990-03-20
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
D14100
Patent
active
D03067050
REFERENCES:
patent: D249090 (1978-08-01), La Celle
patent: D256027 (1980-07-01), Mackay et al.
patent: 4156918 (1979-05-01), Olander, Jr. et al.
patent: 4412300 (1983-10-01), Matson et al.
Burke Wallace R.
Dicon Systems Limited
Jackson Marcus
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