Dr. Karl Ludwig Waldemar Geest built monoplanes. apparently following Mowe patent; a monoplane, 1913; and, apparently, a prototype 1-seat fighter, 1916, that appears to have been produced by Aviatik, 1917.
(various pages here referred to "Waldemar Geest" and now refer to Karl Ludwig Waldemar Geest; if those are actually two separate people, go through the pages again.)
|Ended aero||ca. 1917|
|Key people||Karl Ludwig Waldemar Geest|