Heikki Ahonen

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Valkeakoski, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing cement or concrete
- Patent number 4,985,081
- Issue date Jan 15, 1991
- Oy Iampella AB
- Heikki Ahonen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method and apparatus for cleaning freight containers as well as for...
- Patent number 4,984,593
- Issue date Jan 15, 1991
- Heikki Ahonen
- B08 - CLEANING
Information Patent Grant
Method of manufacturing a reusable mold
- Patent number 4,865,783
- Issue date Sep 12, 1989
- OY Partek AB
- Heikki Ahonen
- B28 - WORKING CEMENT, CLAY, OR STONE