Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1992-05-28
1994-04-05
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D10 65
Patent
active
D03457028
REFERENCES:
patent: D225019 (1972-10-01), Oberheim
patent: D243835 (1977-03-01), Hutchinson et al.
patent: D259925 (1981-07-01), Palmer
patent: 3313030 (1967-04-01), Heys
Bender S. Michael
Davis Antoine D.
Douglas Alan P.
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