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(11) | EP 0 510 603 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Grinder head, particularly for polishing marble, granite and stone materials in general |
(57) A grinder head rotates about a vertical axis and has a plurality of radially arranged
grinder tools (3). The grinder tools can oscillate about a horizontal axis. At least
one of the grinder tools having an arm (11) provided with a cam follower (13) which
follows a cam (15) rotating relatively to the grinder head. |