Navigational system for determining and displaying the position of a vessel on a navigational chart
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United States of America Patent
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-
May 30, 1995
Issued Date -
N/A
app pub date -
Sep 2, 1994
filing date -
Dec 8, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A navigational system for determining and displaying the position of a vessel on a navigational chart includes an optical projection system for establishing first and second reference points on the chart. The system also includes a computer and a keyboard or the like for entering the longitudinal and latitudinal coordinates of the first and second reference points in the computer. A GPS or Loran receiver is also tied into the computer so that the present position of the vessel can be projected onto the chart.
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Cited Art Landscape
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