Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Regulator or control
Patent
1990-02-15
1992-10-20
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Regulator or control
D10 52
Patent
active
D03303365
REFERENCES:
patent: D313560 (1991-01-01), Kummunsalo
patent: 3890836 (1975-06-01), McKenzic et al.
patent: 4712095 (1987-12-01), Georgis, II
patent: 4996909 (1991-03-01), Vache et al.
Hoffman Descriptive Bulletin A-42, dated Feb., 1988, pp. 197-200.
Davis Antoine D.
Demuirgic Design, Inc.
Holtje Nelson C.
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