US PATENT SUBCLASS 434 / 78
.~.~ Plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

72  DF  ARCHITECTURE, INTERIOR DECORATION, OR INDUSTRIAL PLANT LAYOUT {4}
75  DF  .~ Curtain or wall, ceiling, or floor cover {4}
78.~.~ Plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith

DEFINITION

Classification: 434/78

Plaque (e.g.., disk, etc.) turntable relative to index (e.g.., window in card, etc.) to selectively align different points on plaque therewith:

(under subclass 75) Subject matter including a stiff sheet or board pivotal relative to a pointer, an aperture in a second stiff sheet or board, or other indexing means so that various points on the first sheet or board can be brought into register with said pointer, aperture in said second sheet or board, or other indexing means as desired.

SEE OR SEARCH THIS CLASS, SUBCLASS:

198, and 404, for similar devices used for other purposes.