for heating purposes, e.g. industrial, domestic (F01K17/06 takes precedence; domestic- or space-heating systems, e.g. central-heating systems, in general F24D1/00, F24D3/00, F24D9/00)

Full Title

Using steam or condensate extracted or exhausted from steam engine plant (for heating feed-water F01K7/34; returning condensate to boiler F22D ) > for heating purposes, e.g. industrial, domestic (F01K17/06 takes precedence; domestic- or space-heating systems, e.g. central-heating systems, in general F24D1/00, F24D3/00, F24D9/00)

Child Classifications

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• F01K 17/025