Ludwig (1758–1823), Prussian Lt-Colonel member of the APK since 1810. Ludger Mintrop (1880–1956), worked on artillery sound ranging at the APK. Joseph von...
14 KB (1,520 words) - 15:38, 3 September 2024
exploration method, which was used to find oil associated with salt domes. Ludger Mintrop, a German mine surveyor, devised a mechanical seismograph in 1914 that...
77 KB (10,217 words) - 04:01, 22 August 2024
Weimar Republic. Ernst Cloos worked as exploration seismologist for Ludger Mintrop's Seismos company on the Gulf Coast of Texas and Louisiana and later...
12 KB (1,326 words) - 06:29, 16 August 2024