Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Normal
I think this is a registered design. I can't see it getting a patent - prior art; prior publication; and it's not merely an application number. US I expect, though Martin seems to have introduced it via UK and Churchill.(Using Google to look for Martin's patent (no joy) I found a much more recent patent for a twin[hulled seaplane, but the propulsion arrangements may be its novel fearure.
I think this is a registered design. I can't see it getting a patent - prior art; prior publication; and it's not merely an application number. US I expect, though Martin seems to have introduced it via UK and Churchill.
(Using Google to look for Martin's patent (no joy) I found a much more recent patent for a twin[hulled seaplane, but the propulsion arrangements may be its novel fearure.
