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IMPROVEMENTS IN MACHINES FOR PRODUCING AND DIRECTING FLAMES OR A HOT BLAST UPON OR TOWARDS THE GROUND FOR BURING OR SCORCHING MALLEE SHOOTS AND OTHER GROWTHS, AND FOR HEATING OR SCORCHING THE GROUND FOR FERTILIZING THE SAME AND FOR OTHER PURPOSES
IMPROVEMENTS IN MACHINES FOR PRODUCING AND DIRECTING FLAMES OR A HOT BLAST UPON OR TOWARDS THE GROUND FOR BURING OR SCORCHING MALLEE SHOOTS AND OTHER GROWTHS, AND FOR HEATING OR SCORCHING THE GROUND FOR FERTILIZING THE SAME AND FOR OTHER PURPOSES