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| 4564420 | Coke oven battery | Dec 05, 83 | Jan 14, 86 | Dr. C. Otto & Comp. G.m.b.H. |
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| 4376677 | Coke oven heating wall | Dec 24, 81 | Mar 15, 83 | Koppers Company, Inc. |
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| 4299666 | Heating wall construction for horizontal chamber coke ovens | Mar 28, 80 | Nov 10, 81 | Firma Carl Still GmbH & Co. KG |
| 4293390 | Apparatus for treatment of hydrocarbon-containing mineral material | Oct 31, 79 | Oct 06, 81 | DAVY MCKEE CORPORATION, A DE CORP. |
| 4256540 | Regenerative heating system for horizontal coke oven batteries | Dec 08, 78 | Mar 17, 81 | Firma Carl Still |
| 4216060 | Horizontal type coke ovens | May 10, 78 | Aug 05, 80 | MITSUBISHI KASEI CORPORATION |
| 4196052 | Heating wall construction, particularly for use in coking ovens | Mar 27, 78 | Apr 01, 80 | Bergwerksverband GmbH |