Category talk:Chemical companies established in 1840

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Companies

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Article requests : Wikipedia:Requested articles/Business and economics/Companies
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- Tag company articles with the {{portal|Companies}} template
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Business

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Chemistry

This category is within the scope of WikiProject Chemistry, a collaborative effort to improve the coverage of chemistry on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ChemistryWikipedia:WikiProject ChemistryTemplate:WikiProject ChemistryChemistry articles

Years on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion

and see a list of open tasks.YearsWikipedia:WikiProject YearsTemplate:WikiProject YearsYears articles