Allon C. Day

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near Yarm, GB

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Patents Grantslast 30 patents

Information Patent Grant
Treatment of expansible materials to form lightweight aggregate
- Patent number 4,906,183
- Issue date Mar 6, 1990
- J. W. Greaves & Sons, Limited
- Robin A. Kyffin
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Treatment of expansible materials to form lightweight aggregate
- Patent number 4,728,471
- Issue date Mar 1, 1988
- J. W. Greaves & Sons Limited
- Robin A. Kyffin
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sealing means for rotary vessels
- Patent number 4,199,155
- Issue date Apr 22, 1980
- Head Wrightson & Company Limited
- Allon C. Day
- F26 - DRYING