Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1986-05-19
1989-02-07
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
Patent
active
D02997010
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Hong Kong Enterprises-6/85, p. 17-Scale at top.
Cole-Parmer Cat. "1984 Presents" .COPYRGT.1984-p. 7-Scale at top-left.
Brewer David K.
Brewer Hannah S.
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