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Navigation system, including acceleration integrating means
US 2,613,071 A
Filed
: 06/19/1947
Issued
: 10/07/1952
Est. Priority Date
: 06/19/1947
Status: Expired due to Term
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4 Citations
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Current Assignee
Paul G. Hansel
Original Assignee
Paul G. Hansel
Inventors
Hansel, Paul G.
Application Number
US02/755,694
Time in Patent Office
1,937 Days
Field of Search
US Class Current
73/490
CPC Class Codes
G01C 21/188
for accumulated errors, e.g...
G01C 21/22
Plotting boards
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