| 摘要 |
A C-clamp is provided having L-shaped stationary members capable of being adjusted to a plurality of rigidly retained selectable orientations with respect to one another and capable of being rigidly secured to a shaft which supports a threaded movable member. A polygonal element on the shaft engages complementary polygonal holes in the L-shaped members to rigidly retain the selected orientation of the L-shaped members with respect to one another and the shaft.
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