US PATENT SUBCLASS 29 / 269
.~ Means comprising piston ring group contractor or holder

Current as of: June, 1999
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29 /   HD   METAL WORKING

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
269.~ Means comprising piston ring group contractor or holder

DEFINITION

Classification: 29/269

Means comprising piston ring group contractor or holder:

(under subclass 700) Apparatus for contracting, and/or holding contracted, a group of piston rings (usually for the reception of a mandrel holder).

SEE OR SEARCH THIS CLASS, SUBCLASS:

222+, for a piston ring applier or remover or for means for contracting a single piston ring and holding it contracted for the reception of a mandrel holder.