US PATENT SUBCLASS 37 / 186
.~ Contiguous pivots

Current as of: June, 1999
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37 /   HD   EXCAVATING

461  DF  CLAMSHELL BUCKET {4}
186.~ Contiguous pivots

DEFINITION

Classification: 37/186

(under subclass 461) Subject matter wherein each shell grapple is pivoted on a separate pivot close together.