NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Don Seltzer
Date: 2014 Jan 21, 16:39 -0800
Brad wrote: Thanks for that. The illustration shows the clamp stamped with "patent greatest angle clamp". That implies that (1) there *is* an earlier patent than 1921 and (2) the sought after patent proceeds 1900.
BTW, does anyone have or have seen that artificial horizon telescope? That's sweet!
Here is the 1896 patent for the artificial horizon telescope (attached).
However, I can find no evidence of a pre-1900 patent for a greatest angle clamp. I still suspect that the stamping was just a marketing ploy, and had no legal basis.
Don Seltzer
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