Robert R. Pas

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Earls Court, GB

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Patents Grantslast 30 patents

Information Patent Grant
Carboxymethyl guar based drilling fluids
- Patent number 4,743,384
- Issue date May 10, 1988
- Aqualon Company
- Cheng-Fa Lu
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...