US PATENT SUBCLASS 294 / 86.12
.~.~ Combined insertable and surrounding grappling means

Current as of: June, 1999
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294 /   HD   HANDLING: HAND AND HOIST-LINE IMPLEMENTS

86.4  DF  GRAPPLE {18}
86.1  DF  .~ Well type {10}
86.12.~.~ Combined insertable and surrounding grappling means

DEFINITION

Classification: 294/86.12

(under subclass 86.1) Grapples having a grappling means that is inwardly directed from a surrounding supporting member and other grappling means that is outwardly directed from a central supporting member, said means being formed to grapple an external surface and an internal surface respectively of an object within a well.