| Application number | Title of the application | Filing Date | Status |
|---|
| 06/206512 | PROCESS AND EQUIPMENT FOR DEVOLATILIZING DEVOLATILIZABLE FINE-GRAINED MATERIAL BY MEANS OF HOT, FINE-GRAINED HEAT-CARRYING MATERIAL | Nov 12, 1980 | Abandoned |
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| 06/204380 | CATALYST UNITS | Nov 4, 1980 | Abandoned |
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| 06/201699 | METHOD AND APPARATUS FOR MAKING COKE | Oct 28, 1980 | Abandoned |
| 06/199038 | METHOD AND APPARATUS FOR FILLING CARBONIZING CHAMBER OF COKE OVEN WITH POWDERED COAL | Oct 19, 1980 | Abandoned |
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