US PATENT SUBCLASS 294 / 102.2
.~.~ Well pipe elevator

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

86.4  DF  GRAPPLE {18}
102.1  DF  .~ Socket and slip wedge {1}
102.2.~.~ Well pipe elevator

DEFINITION

Classification: 294/102.2

Well pipe elevator:

(under subclass 102.1) Grapples specially adapted for raising or lowering pipe or tubing into or out of a well during the breaking up or making up of well strings.