Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Regulator or control
Patent
1992-05-19
1994-05-24
Vinson, Brian N.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Regulator or control
Patent
active
D03471934
REFERENCES:
patent: D99582 (1936-05-01), Moore
patent: D129967 (1941-10-01), Lambert
patent: D181303 (1957-10-01), Lombard, Jr.
patent: D315519 (1991-03-01), Odum, Jr. et al.
patent: 3729871 (1966-10-01), Bright
patent: 4374541 (1983-02-01), Hoberman
Hardware Age (Aug. 1989) p. 310, Disconnect Switch.
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