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Inventor of Helium Pycnometer - Home
I am the inventor of the helium pycnometer. I hold two U.S. patents for this invention. This was the first reference: Keng, EYH, Air and helium pycnometer. Powder Technol., 3 (1969 70) 179180. Kopf. ... Keng, 1969/1970. EYH Keng , Air and helium pycnometer
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Inventor help and invention resources
The Institute of Inventors, founded 1964, is a non-profit voluntary inventor’s club run by successful professional engineer inventors, providing one-stop inventor help for all stages of invention, including inventing, invention evaluation, patent & product searches, patent applications & drawings, rapid invention prototypes, licensing & funding.
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