| http://www.w3.org/ns/prov#value | - Patent US4441913 - Substituted phenoxypropionates and herbicidal compositions - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsNovel substituted phenoxypropionates of the formula ##STR1## in which R1 and R2 each independently are a hydrogen atom or a C1 to C6 alkyl group, X is a hydrogen or halogen atom, nitro, C1 to C6 alkyl or C1 to C6 a
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