Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1977-03-24
1978-03-14
Swisher, S. Clement
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
G01N 1908
Patent
active
040784177
ABSTRACT:
A test panel for use in evaluating fluorescent penetrants and being composed of a spring steel substrate having surfaces coated with a thin electroless nickel plating capable of producing stress induced microcracks in the plated surfaces.
REFERENCES:
patent: 3164006 (1965-01-01), Alburger
patent: 3791198 (1974-02-01), Alburger
patent: 3927551 (1975-12-01), Alburger
patent: 3946597 (1976-03-01), Tahbaz
O'Brien William J.
Rusz Joseph E.
Swisher S. Clement
The United States of America as represented by the Secretary of
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