Douglas R. Ryan

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Rockaway, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Continuous autorefrigerative dewaxing apparatus
- Patent number 4,319,962
- Issue date Mar 16, 1982
- Exxon Research and Engineering Co.
- Douglas R. Ryan
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...