Radiant energy – Geological testing or irradiation
Patent
1987-06-26
1988-11-22
Chapman, John
Radiant energy
Geological testing or irradiation
73 19, 250255, G01V 500
Patent
active
047868040
ABSTRACT:
A device for measuring radon gas in the soil, consisting of a continuous-acting radon meter operating on through-flow principle. The meter comprises an enclosed volume, the gas therein being measured with the radon meter.
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patent: 4487054 (1984-12-01), Zison
Chapman John
Ilmasti Elektronikka Oy
Roskos Joseph W.
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