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David M. Watkins
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Reading, GB
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Patents Grants
last 30 patents
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Patent Grant
Compositions containing platinum
Patent number
4,250,189
Issue date
Feb 10, 1981
Johnson, Matthey & Co., Limited
Paul D. Hydes
C07 - ORGANIC CHEMISTRY
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Patent Grant
Compositions containing platinum
Patent number
4,228,090
Issue date
Oct 14, 1980
Johnson, Matthey & Co., Limited
Paul C. Hydes
C07 - ORGANIC CHEMISTRY