TY - GEN T1 - On line data bases for chemical patent searches / AU - Herz, Maximilian, VL - 1980 Vol 2 No 3 pages 119-124 ID - 4098 KW - Patents. KW - PATENTS : PATENTABILITY : CHEMICAL AND OTHER PRODUCTS, PROTECTION OF CHEMICAL SUBSTANCES AND PROCESSES TI - On line data bases for chemical patent searches / ER -