O-B-191 › Complete Document History
Benzotriazole, Photographic #C6H4Nhn,N# 1, 2,3-Benzotriazole+Canc, 1960, No S/S Documt
Obsolete Revision Information: |
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NOT - BENZOTRIAZOLE, PHOTOGRAPHIC #C - Dec. 8, 1960
REVISION B - BENZOTRIAZOLE, PHOTOGRAPHIC #C - Jan. 1, 1960 |