NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Bubble sextant patents
From: Greg Rudzinski
Date: 2018 Jun 17, 10:14 -0700
From: Greg Rudzinski
Date: 2018 Jun 17, 10:14 -0700
Ed,
There is no patent number seen on the AN-5851-1 (Navy Mark V) but this link shows an image with these patent numbers:
RE 22076 2207656 2281474 2281475
http://jimsoldtoys.blogspot.com/2011/04/pby-sextant.html
Greg Rudzinski