Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Regulator or control
Patent
1986-12-31
1987-09-22
Zarfas, Louis S.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Regulator or control
Patent
active
D02919745
REFERENCES:
patent: D197416 (1964-01-01), Hose
patent: D198711 (1964-07-01), Reingruber
patent: D220919 (1971-06-01), Hill
patent: D238583 (1976-01-01), Russell
patent: D256335 (1980-08-01), Pasquarette
patent: D288785 (1987-03-01), Levine
Pittway Corporation
Zarfas Louis S,.
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