Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1986-06-05
1988-02-16
Kemper, Catherine E.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
D10121
Patent
active
D02942348
REFERENCES:
patent: D269859 (1983-07-01), Paladini
patent: 3818472 (1974-06-01), Mauk et al.
patent: 3971983 (1976-07-01), Jaquet
patent: 4135183 (1979-01-01), Heltemes
patent: 4384281 (1983-05-01), Cooper
patent: 4509039 (1985-04-01), Dowdle
patent: 4623877 (1986-11-01), Buckens
patent: 4634975 (1987-01-01), Eccleston et al.
Checkpoint Systems Inc.
Kemper Catherine E.
Stapler Alfred
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