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Peter Boehm
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Maidstone, GB
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last 30 patents
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Patent Grant
4-hydroxycoumarin derivatives
Patent number
4,748,185
Issue date
May 31, 1988
E. I. Du Pont de Nemours and Company
Ian D. Entwistle
C07 - ORGANIC CHEMISTRY
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Patent Grant
Anti-coagulants of the 4-hydroxycoumarin type and rodenticidal comp...
Patent number
4,520,007
Issue date
May 28, 1985
Shell Oil Company
Ian D. Entwistle
C07 - ORGANIC CHEMISTRY