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Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
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11/00
Aliphatic unsaturated hydrocarbons
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C07C11/12
Alkadienes
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C07C11/16
with four carbon atoms
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C07C11/167
1, 3-Butadiene
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