Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Regulator or control
Patent
1976-09-27
1978-07-11
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Regulator or control
D1004
Patent
active
D02484544
REFERENCES:
patent: D159983 (1950-09-01), Hensel
patent: D175854 (1955-10-01), Ray
patent: D198711 (1964-07-01), Reingruber
patent: D203473 (1966-01-01), Shew
patent: D206552 (1966-12-01), Barbier
Holtje Nelson C.
Maxwell Georges A.
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