US PATENT SUBCLASS 400 / 349
.~.~ Conjointly set or centrally spring biased

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

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
342  DF  .~ Margin-regulator (e.g., adjustable margin-stop) mechanism {7}
349.~.~ Conjointly set or centrally spring biased

DEFINITION

Classification: 400/349

Conjointly set or centrally spring biased:

(under subclass 342) Subject matter wherein the margin-stop* members at opposite ends of the carriage* or at opposite ends of the travel of the carriage are both moved to a new position at the same time, or wherein the movement of one or both of the margin-stop members is urged by a yieldable member toward the middle of the carriage or toward the middle of movement of the carriage.