Johannes A. M. Butter

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Heemskerk, NL

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Patents Grantslast 30 patents

Information Patent Grant
Repairing damaged refractory walls by gunning
- Patent number 4,143,104
- Issue date Mar 6, 1979
- Hoogovens Ijmuiden, B.V.
- Jan T. van Konijnenburg
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES