Patents
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C07 - Organic chemistry
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C07G - Compounds of unknown constitution
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C07G 9 - Ammonium bituminosulfonate, e.g. ichthyol
Patents for C07G 9 - Ammonium bituminosulfonate, e.g. ichthyol (1)
11/1986
11/26/1986
CN85107591A
Method for increasing the yield of crops