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Harold E. St. Louis
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Midland, MI, US
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last 30 patents
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Patent Grant
Adjustable plug seal mechanism for heat transfer zone separation in...
Patent number
4,355,905
Issue date
Oct 26, 1982
The Dow Chemical Company
Harold E. St. Louis
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL