SPECIAL MACHINERY-NAMELY, DRILLING MACHINES, EXCLUSIVE OF DRILL CHUCKS, GEAR CHAMFERING MACHINES, GEAR BURNISHING MACHINES, SPLINE RELIEVING MACHINES, POINTING MILLS, GEAR TOOTH TOPPERS, PLANETARY BROACHING MACHINES, AND INPREGNATING EQUIPMENT FOR INPREGNATING CASTINGS AND THE LIKE TO SEAL POROSITY THEREIN

'broach':26 'burnish':15 'cast':33 'chamfer':12 'chuck':10 'drill':5,9 'equip':30 'exclus':7 'gear':11,14,22 'inpregn':29,32 'like':36 'machin':6,13,16,19,27 'machineri':3 'machinery-nam':2 'mill':21 'name':4 'planetari':25 'point':20 'poros':39 'reliev':18 'seal':38 'special':1 'spline':17 'therein':40 'tooth':23 'topper':24

POROSITY TESTING MACHINES FOR TESTING WORK PIECES OR PARTS BY APPLICATION OF PRESSURE OR VACUUM THERETO

'applic':11 'machin':3 'part':9 'piec':7 'poros':1 'pressur':13 'test':2,5 'thereto':16 'vacuum':15 'work':6

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