Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Radiation – e.g. – geiger counter
Patent
1978-09-20
1981-07-14
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Radiation, e.g., geiger counter
D10 46, D1004
Patent
active
D02598655
REFERENCES:
patent: D232947 (1974-09-01), Christiansen
patent: D240612 (1976-07-01), Becker
patent: 1025828 (1912-05-01), Paul
patent: 1110146 (1914-09-01), Rice
patent: 1186394 (1916-06-01), Hamilton
patent: 1883655 (1932-10-01), Eskilson
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