Albert Edward Coles

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Bath, GB

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Patents Grantslast 30 patents

Information Patent Grant
Lubricated rotary valve with concentric sealing rings
- Patent number 4,114,639
- Issue date Sep 19, 1978
- Cross Manufacturing Company (1938) Ltd.
- Michael Ellison Cross
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES