共 25 条
[21]
Wagner G. H., 1953, [No title captured], Patent No. [US2632013, 2632013, 2,632,013]
[22]
Wagner G.H., 1953, U.S. Patent, Patent No. [2,637,738, 2637738]
[23]
WAGNER GH, 1952, Patent No. 670617
[25]
Whitmore F. C., 1947, J AM CHEM SOC, V69, P1551