Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Vapor pressure
Patent
1990-02-27
1990-11-20
Williams, Hezron E
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Vapor pressure
G01N 1302
Patent
active
049708937
ABSTRACT:
An apparatus for measuring the surface of a substrate has a normally horizontal surface for mounting a solid thereon, a device for rotating the surface and a counter synchronized with the rotational device to indicate the amount of rotation and a switch for simultaneously initiating activation of the rotating device and synchronized counter and for simultaneously deactivating both the rotational device and the synchronized counter.
REFERENCES:
patent: 2054438 (1936-09-01), Natelson
Roskos Joseph W.
Williams Hezron E
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