| 摘要 |
PCT No. PCT/DE88/00175 Sec. 371 Date Oct. 5, 1989 Sec. 102(e) Date Oct. 5, 1989 PCT Filed Feb. 21, 1988 PCT Pub. No. WO88/07906 PCT Pub. Date Oct. 20, 1988.A compass saw comprising a separate removable suction channel located between a base plate and a saw housing pivotally supported on the base plate, the suction channel having a substantially unobstructed suction path.
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