Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Design Patent
2003-07-02
2004-06-29
Davis, Antoine D. (Department: 2913)
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
Design Patent
active
D0492211
CLAIM:
The ornamental design for a display testing device, as shown and described.
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patent: 6507336 (2003-01-01), Lunsford
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patent: 6636204 (2003-10-01), Santoh
patent: 6639577 (2003-10-01), Eberhard
E. I. du Pont de Nemours and Company
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