Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1992-01-23
1993-11-16
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
D10 78
Patent
active
D03413306
REFERENCES:
patent: D204560 (1966-04-01), Merl
patent: D318627 (1991-07-01), Frederick
patent: 3969930 (1976-07-01), Prevorsek et al.
Evans Alfred G.
Rawson Paul O.
Remo Joseph T.
Barrese Rocco S.
Bremer Thomas R.
Davis Antoine D.
Dilworth Peter G.
Douglas Alan P.
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