7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
cutters-viz., angular, circular-cornering, concave, convex, formed, gear, gear-roughing, keyway, milling screw-slotting, sprocket, step-stocking, tap and reamer, t-slot and twist-drill; mills-viz., face, end, shell, side, hollow and inserted tooth; hobs-viz., worm, generating, and ground; keys and keyways for machine-tools, saws, slitting-disks, cutting-off machines; machines for grinding and machines for sharpening cutters, reamers, hobs, and mills; reamers and reamer sets, drills and drill sets, screwslotters, collets, collet-blanks, countersinks, bits and bit-stock sets, sleeves and sockets for drills and reamers, lathe-sockets, arbors, mandrels, jigs, and bushings