Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent
1991-01-08
1993-06-22
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Changeable exhibitor, e.g., digital type
Patent
active
D03366154
REFERENCES:
patent: D219109 (1970-11-01), Thomas
patent: 3759030 (1973-09-01), Wakabayashi
Hong Kong Enterprise Mar. 1989 p. 131-wavy calculators at top.
Home Furnishings Daily-Mar. 30, 1987-p. 112-wavy clock at top left.
Design-Aug. 1988. p. 27-wavy calculator at bottom-left.
Holtje Nelson C.
Pollyflame International B.V.
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