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General Coal Mining Research Institute

1921 Wild Cat strikes over the mine car pushing issue spread throughout Central Pennsylvania This was a major concern for miners because the pushing of loaded mine cars to the coal tipples caused muscle strains ruptures and numerous other injuries John L Lewis appoints John Brophy to head the UMWAs Nationalization Research Committee. If you are interested in our company's products, we welcome your consultation 7/24 hours, and we are committed to creating the most suitable solution for you.

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