U.S. federal trademark · Serial No. 73330448
APPARATUS FOR THE FEEDING OF SOLID MATERIALS INTO FURNACE, ESPECIALLY THE UNINTERRUPTED FEEDING OF SIZE-REDUCED SOLID FUELS INTO A SLOPING GRATE FURNACEAPPARATUS FOR THE FEEDING OF SOLID MATERIALS INTO A FUNANCE, ESPECIALL Y THE UNITERRUPED FEEDING OF SIZED-REDUCEDSOLID FUELS INTO A SLOPING GRATE FURNANCE
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