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MARCHEM CORPORATION
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MARYLAND HEIGHTS, MO, US
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Patents Grants
last 30 patents
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Patent Grant
Method of treating extensible hydrocarbon articles
Patent number
3,992,221
Issue date
Nov 16, 1976
Vitek, Inc.
Charles Albert Homsy
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Trademark
last 30 trademarks
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Trademark
73567121 - MARCHEM
Serial number
73567121
Registration number
1501778
Filing date
Nov 6, 1985
MARCHEM CORPORATION
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry