72398380
Jul 26, 1971
Apr 23, 1974
BULK BREAKER SYSTEMS COMPRISING GASEOUS DISCHARGE CARTRIDGES FOR DISLODGING STOPPAGE OF MATERIAL FLOW FROM STORAGE BINS, SILOS, STOCK PILES AND THE LIKE; AND AIR COMPRESSORS AND RECEIVER UNITS FOR STORAGE OF COMPRESSED AIR FOR HIGH PRESSURE DISCHARGE CARTRIDGES
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