US PATENT SUBCLASS 400 / 437
.~.~ For impact control

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}
436  DF  .~ Type-bar return spring connected to type-bar-action linkage {4}
437.~.~ For impact control

DEFINITION

Classification: 400/437

For impact control:

(under subclass 436) Subject matter wherein a type-bar* member is moved from its rest position to its print-point* position to impress a type-face* by force against a record-medium* backed by a platen* at the print-point, and wherein significance is attributed to regulating or governing said force by said resilient or yieldable means.