共 16 条
- [1] CLAUSS W, Patent No. 3492135
- [2] DEMINJER CH, Patent No. 2929742
- [4] FOULKE DG, Patent No. 3318711
- [5] GUTZEIT G, 1959, ASTM265 SPEC TECHN P
- [6] HEYMANN K, Patent No. 3454416
- [7] HODOLEY S, Patent No. 3515563
- [8] Mellor DP., 1964, CHELATING AGENTS MET
- [9] MERKER R, Patent No. 3453123
- [10] OKINAKA Y, UNPUBLISHED WORK