Keywords: 1937 1952 Prof Otto Bayer Polyurethan.jpg en Prof Otto Bayer in 1952 demonstrating his creation from 1937 the polyurethane pt Prof Otto Bayer em 1952 demonstrando sua criação de 1937 o poliuretano http //press bayer com/baynews/baynews nsf/id/Historical_Photos_e opendocument Bayer AG 1952 PD-old 1982 deaths 1902 births Polyurethane foam |