共 15 条
[2]
ALFREY T, 1952, COPOLYMERIZATION
[3]
DENIE WLJ, 1950, Patent No. 2496384
[4]
FINKENTSCHER, 1937, Patent No. 2100900
[7]
HANSON AW, 1956, Patent No. 2769804
[8]
HANSON AW, 1950, Patent No. 2519834
[9]
HANSON AW, 1949, Patent No. 2488189
[10]
HEEREMA J, 1949, Patent No. 2482771