【机械工程】备或发动机【机械工程】机器或发动机

adjustable multi-spindle bench drilling machines【机】

multiple-register bookkeeping machines

dip impregnation of dip impregnations, stators, rotors of dynamo-elecric machines

attaching in office printing machines

traversing thread guide with thread guide (yarn guide) for winding machines

fluid circulation in refrigeration machines using osmosis

spindle clutches for honing machines

for flow restrictor in refrigeration machines