Navigational aid
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 16, 1982
Grant Date -
N/A
app pub date -
Sep 24, 1980
filing date -
Oct 11, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A navigational aid device comprising three concentrically mounted relatively moveable scales and at least one centrally mounted rotatable arm defining a moveable radial line intersecting the scales and their axis of rotation, at least the central portion of the device being transparent or cut-away so that when placed on a map the map location appearing on the axis is visible to an operator using the device.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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