US PATENT SUBCLASS 400 / 399
.~.~ By rolling contact between links


Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

383  DF  TYPE-BAR-ACTION MECHANISM OR TYPE-FACE ON TYPE-BAR OR TYPE-FACE INKER {19}
398  DF  .~ With accelerated (e.g., motion amplifying)type-bar action {9}
399.~.~ By rolling contact between links {1}
399.1  DF  .~.~.~> By key-lever rolling on fulcrum


DEFINITION

Classification: 400/399

By rolling contact between links:

(under subclass 398) Subject matter wherein the mechanism includes one lever or link that pivots with respect to an associated lever or link on a fulcrum that rolls or turns at the point of association.