NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: micrometer sextants.
From: Wolfgang K�berer
Date: 2007 Oct 28, 08:32 +0100
From: Wolfgang K�berer
Date: 2007 Oct 28, 08:32 +0100
FER wrote: >One ad shows a high-end vernier sextant >that has a micrometer drum, too. That was patented by C.Plath in 1921. Patent number 358451A in Germany. Wolfgang --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---