Matches in DBpedia 2015-10 for { ?s ?p "John Dennis Ryan (1864–1933) was an American industrialist and copper mining magnate. President of Anaconda Copper Mining Company and creator of Montana Power Company."@en }
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- John_D._Ryan_(mining) abstract "John Dennis Ryan (1864–1933) was an American industrialist and copper mining magnate. President of Anaconda Copper Mining Company and creator of Montana Power Company.".
- John_D._Ryan_(mining) comment "John Dennis Ryan (1864–1933) was an American industrialist and copper mining magnate. President of Anaconda Copper Mining Company and creator of Montana Power Company.".