US PATENT SUBCLASS 400 / 445.4
.~.~.~ Interchangeable (i.e., easily removable) segment

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}
441  DF  .~ Type-bar pivot support {10}
445  DF  .~.~ Type-bar-segment (e.g., wire journal) {4}
445.4.~.~.~ Interchangeable (i.e., easily removable) segment

DEFINITION

Classification: 400/445.4

Interchangeable (i.e., easily removable) segment:

(under subclass 445) Subject matter wherein significance is attributed to a type-bar segment* that may be taken out of the typewriter without the use of special tools to be replaced by the same or a different type-bar-segment.