US PATENT SUBCLASS 72 / 481.5
.~.~.~.~.~ Threaded means "telescopically" interfits with tool face

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

462  DF  TOOL AND/OR TOOL HOLDER {7}
476  DF  .~ Having unitary tool-face {4}
481.1  DF  .~.~ With support or holder for adjustable or removable tool face {10}
481.3  DF  .~.~.~ Threaded means to move or hold tool face {4}
481.4  DF  .~.~.~.~ To move by threaded member that travels along tool face {1}
481.5.~.~.~.~.~ Threaded means "telescopically" interfits with tool face

DEFINITION

Classification: 72/481.5

Threaded means "telescopically" interfits with tool face:

(under subclass 481.4) Apparatus wherein the tool face includes a generally cylindrical opening for receiving and interfitting with the helical ridges of the helically ridged member.