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Class Information
Number: 434/78
Name: Education and demonstration > Architecture, interior decoration, or industrial plant layout > Curtain or wall, ceiling, or floor cover > Plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith
Description: 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.
Patents under this class:
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