Item:Q14504: Difference between revisions
Created a new Item: Seven Sisters, the seven oil companies which dominated the global petroleum industry |
Created claim: subclass of (P1): petroleum industry (Q14369) |
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| Property / instance of: business group / rank | |||||||||||||||
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| Property / instance of: business group / qualifier | |||||||||||||||
start time: 1950
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end time: 1980
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| Property / subclass of: petroleum industry / rank | |||||||||||||||
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