73796104
Apr 27, 1989
Apr 16, 1991
MACHINES FOR THE WORKING AND TREATMENT OF METALS, WOOD, GLASS, PLASTIC, PAPER, TEXTILES, AND FOOD PRODUCTS, AND FOR AGRICULTURE, NAMELY CYCLONE SEPARATORS, SUCTION EXTRACTORS FOR TANKS, BRIQUETTING PRESSES AND AUTOMATIC STOKERS
MachineryBOILERS FIRED WITH SOLIDS, BOILERS FIRED WITH SOLIDS HAVING A GASIFIER FIRE TROUGH, BOILERS FIRED WITH CHIPS AND/OR PIECES OF WOOD AND SUCH BOILERS HAVING A GASIFIER FIRE TROUGH, CHIP FIRED BOILERS WITH BLAST OR UNDERFEED FIRING, SPECIAL BOILERS FIRED WITH STRAW, PAPER, WOODEN BEAMS AND PACKING MATERIAL, SPECIAL OIL- GAS-FIRED BOILERS, BOILER FEEDS FROM RESERVOIRS OR FROM LARGE TANKS, AUTOMATIC FURNACES
Environmental Control Apparatus