Optical record cards
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United States of America Patent
Stats
-
May 16, 1989
Grant Date -
N/A
app pub date -
Oct 1, 1987
filing date -
Oct 1, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Various configurations of rectangular optical information storage card include an information surface arranged in a generally concentric and/or spiral format so that the information surface can be read as the card is rotated. Such configurations can include an embossed layer to form an information surface.
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International Classification(s)
Cited Art Landscape
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