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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	261
173/13	Drive controlled by relative axial movement of tool	91
173/140	Drive gearing advances relative to source or power	12
173/141	Advance causing or controlling means	34
173/162.1	Including means to vibrationally isolate a drive means from its holder	161
173/168	Passage in manipulating handle for drive motor motive fluid	82
173/170	Drive control operable by hand engaging manipulating handle	250
173/171	Miscellaneous	171
173/18	Drive controlled by relative movement of advance causing or controlling means or manipulating handle	23
173/184	With vehicle support for drive	82
173/19	Self-acting advance and retraction cycle	46
173/197	Work cleansing	20
173/2	Automatic control of power operated means	144
173/20	With indicating or signaling means	71
173/213	Means to drive tool about an axis	78
173/29	Convertible	117
173/30	With means engaged by part of human other than hand	19
173/31	With work engaging means supporting drive	32
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	43
173/49	Drive by means reacting to rotating eccentric mass	114
173/50	Power paths to plural tools from single drive	19
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	37
173/81	Means to control advance and cyclically reciprocate a cable-operated hammer or tool	12
173/90	Impacting devices (e.g., hammers)	165
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