TY - BOOK ED - Rubber Stichting TI - Patents on the manufacture of sponge rubber and on heatsensitized latex T2 - Rubber Stichting : Communication PY - 1949///-1951 CY - Delft, KW - Patentsammlung KW - Kautschuk KW - Schaumstoff N1 - 11.268 ER -