共 50 条
- [1] BASF, 1913, Patent DRP, Patent No. [293,787, 293787]
- [2] BASF, 1923, German Patents, Patent No. 415686
- [3] BASF, 1924, Patent No. 585169
- [4] BASF, 1924, Patent No. 581816
- [5] ELVINS, 1926, NATURE, V154
- [6] FISCHER, 1927, BER B, V60, P1330
- [7] Fischer F., 1926, BRENNST CHEM, V7, P97
- [8] GHOSH, 1925, J INDIAN CHEM SOC, V2, P142
- [9] GHOSH, 1926, J INDIAN CHEM SOC, V3, P415
- [10] JOHNSON, 1925, Patent No. 254760