Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Design Patent
2000-07-20
2001-03-27
Jackson, Marcus A. (Department: 2911)
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Design Patent
active
D0439537
CLAIM:
The ornamental design for the wearable electric field presence detector, as shown and described.
REFERENCES:
patent: D. 407032 (1999-03-01), McDonald
patent: D. 430546 (2000-09-01), Gibson
HD Electric Company
Jackson Marcus A.
Seyfarth Shaw
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