Abrading – Abrading process – Combined abrading
Reexamination Certificate
2006-02-28
2006-02-28
Nguyen, George (Department: 3723)
Abrading
Abrading process
Combined abrading
C451S529000, C451S548000, C451S461000
Reexamination Certificate
active
07004823
ABSTRACT:
The invention relates to grinding/polishing sheet, which comprises 2 or more annular grinding/polishing zones (1-5) separated by intermediate annular distancing zones (6). One or more of the grinding polishing zones (1-5) comprises one or more non-continuous areas, that are part of an annular structure forming channels (8) in radial direction. The grinding/polishing sheet can be placed on a rotatable grinding/polishing disc for manual, automatic or semiautomatic preparations of materialographic samples. The invention also relates to a method for preparations of materialographic samples.
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Damgaard Morten J.
Kisbøll Klaus
Dykema Gossett PLLC
Nguyen George
Struers A/S
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