21. In January 1762, Platen returned to Saxony to the army of Prince Henry. 22. Sophia Susanna Charlotte, wife of General Dubislav Friedrich von Platen ( circa 1750) 23. The vulcanizer consists of a pair of parallel heated platens mounted on a hydraulic press. 24. Hostilities meant that the sheet-fed crown platen could not be delivered until 1952. 25. The site was identified in 1947 after an initiative by the newspaperman Gustaf von Platen . 26. The cylindrical platen became " an indispensable part of every standard [ typewriter ] ". 27. Ricciardi von-Platen gained international attention as observer at the Nuremberg Doctors'Trial. 28. The platen hammer then struck the paper from behind, causing the selected character to print. 29. The platen must have rounded edges and corners to prevent the vacuum from tearing the bag. 30. Von Platen left the project before it succeeded in producing the first synthetic diamonds in 1953.
