US PATENT SUBCLASS 29 / 224
.~.~.~ With ring encirclement

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

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
222  DF  .~ Piston ring inserter or remover {1}
223  DF  .~.~ Plier-type operation {1}
224.~.~.~ With ring encirclement

DEFINITION

Classification: 29/224

With ring encirclement:

(under subclass 223) Apparatus provided with means for partly or completely encircling a piston ring.