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Patents Grantslast 30 patents

Information Patent Grant
Tap hole blocking material for metal melting apparatus
- Patent number 6,281,266
- Issue date Aug 28, 2001
- Nippon Crucible Co., Ltd.
- Kenzo Takeda
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method of drying lining refractory material for instrument/apparatus
- Patent number 5,747,400
- Issue date May 5, 1998
- Nippon Crucible Co., Ltd
- Tadao Sasaki
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES