US PATENT SUBCLASS 72 / 453.1
.~.~ Utilizing stored energy

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

429  DF  WITH MEANS TO DRIVE TOOL {11}
453.01  DF  .~ Including pneumatic- or fluid-actuated tool support {7}
453.1.~.~ Utilizing stored energy {1}
453.11  DF  .~.~.~> Stored kinetic energy

DEFINITION

Classification: 72/453.1

Utilizing stored energy:

(under subclass 453.01) Apparatus including provision to accumulate a tool moving force for subsequent release.