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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Circular "Navigational Computer"
From: Dave Walden
Date: 2008 Jun 21, 18:28 -0700
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From: Dave Walden
Date: 2008 Jun 21, 18:28 -0700
Think I may have found it.
Jan. 7, 1936. H. M. JENSEN
NAVIGATIONAL INSTRUMENT
Filed Dec. 16, 1933 .
US Pat 2,026,537
NAVIGATIONAL INSTRUMENT
Filed Dec. 16, 1933 .
US Pat 2,026,537
See attached.
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