71623602
Jan 15, 1952
Feb 10, 1953
CENTRIFUGAL PUMPS FOR HANDLING WATER, OIL, OR LIQUID FUELS; SELF-PRIMING CENTRIFUGAL PUMPS; DOMESTIC WATER HANDLING UNITS COMPRISING DEEP AND SHALLOW WELL JET-CENTRIFUGAL PUMP COMBINATION UNITS; DEEP AND SHALLOW WELL PISTON PUMPS; AND AUTOMATIC SUMP PUMPS FOR CELLAR DRAINAGE
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