Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1978-09-18
1980-09-23
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1004
Patent
active
D02570076
REFERENCES:
patent: D194853 (1963-03-01), Williams
patent: D232349 (1974-08-01), Polydoris
patent: D235855 (1975-07-01), Polydoris
patent: 437065 (1890-09-01), Wells
patent: 3163941 (1965-01-01), Presley
patent: 3791038 (1974-02-01), Polydoris
patent: 3918163 (1975-11-01), Keating
patent: 3921301 (1975-11-01), Tuley
Ashen Robert M.
Holtje Nelson C.
Ronco Teleproducts, Inc.
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