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Irving H. Spinner
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Etobicoke, CA
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last 30 patents
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Patent Grant
Process and apparatus for obtaining a more concentrated solution of...
Patent number
4,186,174
Issue date
Jan 29, 1980
Eco Tec Limited
Robert F. Hunter
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...