US PATENT SUBCLASS 7 / 146
.~ Fixed form

Current as of: June, 1999
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7 /   HD   COMPOUND TOOLS

143  DF  HAMMER {2}
146.~ Fixed form {1}
147  DF  .~.~> Integral

DEFINITION

Classification: 7/146

Fixed form:

(under subclass 143) Tools wherein the relative positions of the various parts are not altered during the various operations of which the device is capable.