首页> 外国专利> METHOD FOR EXPLOITATION OF SEVERAL DEPOSITS OR DEPOSIT AND WASTE ROCK AND THEIR SEPARATE WINNING, ESPECIALLY IN COAL MINING AND A DEVICE FOR IMPLEMENTING THAT METHOD

METHOD FOR EXPLOITATION OF SEVERAL DEPOSITS OR DEPOSIT AND WASTE ROCK AND THEIR SEPARATE WINNING, ESPECIALLY IN COAL MINING AND A DEVICE FOR IMPLEMENTING THAT METHOD

机译:开采特别是煤矿开采中的几个沉积物或沉积废料岩及其分离的方法及实施该方法的装置

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