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Class Information
Number: 173/139
Name: Tool driving or impacting >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
173/1	Processes	247
173/13	Drive controlled by relative axial movement of tool	90
173/140	Drive gearing advances relative to source or power	11
173/141	Advance causing or controlling means	33
173/162.1	Including means to vibrationally isolate a drive means from its holder	148
173/168	Passage in manipulating handle for drive motor motive fluid	76
173/170	Drive control operable by hand engaging manipulating handle	229
173/171	Miscellaneous	155
173/18	Drive controlled by relative movement of advance causing or controlling means or manipulating handle	22
173/184	With vehicle support for drive	77
173/19	Self-acting advance and retraction cycle	43
173/197	Work cleansing	20
173/2	Automatic control of power operated means	137
173/20	With indicating or signaling means	66
173/213	Means to drive tool about an axis	76
173/29	Convertible	111
173/30	With means engaged by part of human other than hand	19
173/31	With work engaging means supporting drive	30
173/38	Swinging arm causes advance with means to guide rectilinear tool advance	32
173/39	With means to adjust position of axis of tool advance	34
173/45	With means to space axis of tool advance relative to prior position	6
173/46	Combined	49
173/47	Drive adjustable to completely change kind of drive	38
173/49	Drive by means reacting to rotating eccentric mass	113
173/50	Power paths to plural tools from single drive	18
173/52	Single advance causing or controlling means or manipulating for plural drives	24
173/53	Hammer or tool shaft reciprocated by gripping means which release or yield to permit advance	36
173/81	Means to control advance and cyclically reciprocate a cable-operated hammer or tool	12
173/90	Impacting devices (e.g., hammers)	155
173/DIG.1	Operable submerged in liquid	32
173/DIG.2	Sound muffling	92
173/DIG.3	Lubrication	22
173/DIG.4	Liquid operated	27