Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1991-12-16
1993-10-12
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D03402002
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patent: 4488118 (1984-12-01), Jeffers et al.
patent: 4525704 (1985-06-01), Campbell et al.
patent: 4916437 (1990-04-01), Gazzay
Burke Wallace R.
Gilden Leon
Jackson Marcus
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