US PATENT SUBCLASS 72 / 319
.~.~ With pivotal tool (e.g., sheet metal bender)

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

293  DF  BY USE OF NON-DEFORMING WORK-GRIPPING CLAMP AND RELATIVELY MOVABLE CLAMP, TOOL OR WORK-FORCER {9}
316  DF  .~ Clamp structure constitutes sole initial metal-deforming force-reaction means (i.e., is passive tool) {4}
319.~.~ With pivotal tool (e.g., sheet metal bender) {1}
320  DF  .~.~.~> With die surface extension on clamp {1}

DEFINITION

Classification: 72/319

With pivotal tool (e.g., sheet metal bender):

(under subclass 316) Subject matter wherein said co-acting relatively movable instrumentality is restrained to rotation about a fixed axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

298+, for relatively pivoted nondeforming work-gripping clamps.

310, for pivoted work clamp (i.e., tool) and coacting fixed tool.

387+, for offset tool face couple comprising a pivoted tool element (e.g., a pipe or rod bender without claimed clamping means).