Andrew Howard Donaldson Park

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Burton-on-Trent, EN

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Patents Grantslast 30 patents

Information Patent Grant
Measurement of flow of particulate material by sensing the shadow p...
- Patent number 4,070,575
- Issue date Jan 24, 1978
- Coal Industry (Patents) Ltd.
- Andrew Howard Donaldson Park
- G01 - MEASURING TESTING
Information Patent Grant
Method of and apparatus for measurement of flow of particulate mate...
- Patent number 4,035,635
- Issue date Jul 12, 1977
- Coal Industry (Patents) Limited
- Roy Crosland
- G01 - MEASURING TESTING