US PATENT SUBCLASS 29 / 520
.~.~.~.~ By axially applying force

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
428  DF  .~ Assembling or joining {21}
505  DF  .~.~ Joining by deforming {6}
515  DF  .~.~.~ Inward deformation of aperture or hollow body wall {2}
520.~.~.~.~ By axially applying force

DEFINITION

Classification: 29/520

By axially applying force:

(under subclass 515) Process in which the cavity has an axis, and the inward deformation results from the application of force applied in the direction of that axis.