73714284
Mar 1, 1988
Nov 8, 1988
BAGS OF GRANULAR ABSORBENT MATERIAL MADE OF PROCESSED RICE HULL ASH FOR ABSORBING ALL HAZARDOUS AND NON-HAZARDOUS WASTE LIQUIDS FROM TERRESTRIAL ENVIRONMENTS; SOAKER TUBES AND PADS FILLED WITH GRANULAR ABSORBENT MATERIAL MADE OF PROCESSED RICE HULL ASH FOR ABSORBING ALL HAZARDOUS AND NON-HAZARDOUS WASTE LIQUIDS FROM TERRESTRIAL ENVIRONMENTS; AND SOAKER TUBES AND PADS FILLED WITH GRANULAR ABSORBENT MATERIAL MADE OF PROCESSED RICE HULL ASH TREATED WITH SILICON FOR ABSORBING SUBSTANCES LIGHTER THAN WATER
Chemicals