共 18 条
- [11] MUNZEL F, 1937, Patent No. 193931
- [12] MUNZEL F, 1938, Patent No. 830494
- [13] SCHEIBER J, 1934, Patent No. 1979495
- [14] Scheiber J., 1934, U. S. Patent, Patent No. 1942778
- [15] SCHWARCMANN A, 1938, Patent No. 2140271
- [16] SUZUKI T, 1928, SCI PAPERS I PHYS S, V9, P5
- [17] UFER H, 1932, Patent No. 1892258
- [18] YAMADA T, 1935, J SOC CHEM IND JAP S, V38, P120