Abrading – Precision device or process - or with condition responsive... – With indicating
Reexamination Certificate
2005-09-06
2005-09-06
Nguyen, Dung Van (Department: 3723)
Abrading
Precision device or process - or with condition responsive...
With indicating
C451S005000, C451S541000
Reexamination Certificate
active
06939201
ABSTRACT:
The grindstone is configured so that at least the surface of each abrasive grain is colored differently from the surface of a base.
REFERENCES:
patent: 5736427 (1998-04-01), Henderson
patent: 6136043 (2000-10-01), Robinson et al.
patent: 6736702 (2004-05-01), Minami
patent: 62-29256 (1987-02-01), None
patent: 7-218416 (1995-08-01), None
Nguyen Dung Van
President of Sasebo National College of Technology
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