71615777
Jun 27, 1951
Mar 8, 1955
BOTTOM-DUMPING BUCKETS FOR TRANSPORTING AND PLACING MIXED CONCRETE, ELEVATING CHARGERS EMBODYING CONVEYORS FOR UNLOADING OR ELEVATING BULK CEMENT, BINS EMBODYING MACHINERY FOR ELEVATING OR CONVEYING CONCRETE CONSTITUENTS OR THE LIKE TO FILL SAID BINS, CEMENT HANDLING PLANTS EMBODYING MACHINERY FOR CONVEYING OR ELEVATING BULK CEMENT, BUCKET ELEVATORS, AND CONVEYORS
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