Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Element or attachment
Patent
1994-03-07
1995-04-11
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Element or attachment
D 9439
Patent
active
D03572005
REFERENCES:
patent: D336043 (1993-06-01), Provencio
patent: D349648 (1994-08-01), Tirrell et al.
patent: 4254731 (1981-03-01), Taylor
patent: 5273360 (1993-12-01), Wyatt et al.
Chromatography Research Supplies, Inc.
Davis Antoine D.
Douglas Alan P.
Eaves, Jr. James C.
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