Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1998-03-30
1998-12-29
Jackson, Marcus A.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
1005
Patent
active
D04032608
REFERENCES:
patent: D283684 (1986-05-01), Francis
patent: D297918 (1988-10-01), Kamada
patent: D308177 (1990-05-01), Parker et al.
patent: D391512 (1998-03-01), Chu
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