433 / | HD | DENTISTRY |
25 | DF | APPARATUS {20} |
103 | DF | .~ Having motor or means to transmit motion from motor to tool (e.g., "engine") {10} |
114 | DF | .~.~ Hand-held tool or handpiece {9} |
126 | .~.~.~ Having means facilitating assembly or disassembly of tool or handpiece {1} | |
127 | DF | .~.~.~.~> Means to releaseably grip tool {2} |