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The ornamental design for a rotary grinding stone, as shown and described.
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FIG. 1 is a perspective view of a rotary grinding stone having a centrally disposed hole according to the new design.
FIG. 2 is a front side view of the rotary grinding stone of FIG. 1;
FIG. 3 is a right side view of the rotary grinding stone of FIG. 1;
FIG. 4 is a rear side view of the rotary grinding stone of FIG. 1;
FIG. 5 is a left side view of the rotary grinding stone of FIG. 1;
FIG. 6 is a top view of the rotary grinding stone of FIG. 1;
FIG. 7 is a bottom view of the rotary grinding stone of FIG. 1; and,
FIG. 8 is a cross-sectional view of the rotary grinding stone of FIG. 1, taken at section A--A in FIG. 6.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 12 2003 | Shinano Electric Refining Co., Ltd. | (assignment on the face of the patent) | / | |||
Aug 28 2003 | KAZAMA, KENICHI | SHINANO ELECTRIC REFINING CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014472 | /0761 |
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