| 摘要 |
The handle body (A) constitutes one of the branches of a T, of which the other branch is formed by its attachment piece (2) which is continued by the interchangeable element (B), and this body includes, on the side toward the interchangeable element (B), indentations (26) for positioning the fingers of the hand, said indentations (26) being arranged on either side of the attachment piece, and of which one (26a), for positioning the index finger, is equipped with a bore through which there protrudes the push-button (14) for activating the pneumatic distributor (11).
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