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This page displays all 「FI」 in main group F24D9/00. |
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CC:Concordance | |||||
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Central heating systems employing combinations of heat-transfer fluids covered by two or more of groups F24D 1/00-F24D 7/00 (district heating systems F24D 10/00; central heating systems using heat accumulated in storage masses F24D 11/00) [1, 2006.01, 2022.01] | HB | CC | 3L071 | |
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.Hot water and steam systems | HB | CC | 3L071 | |