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1 result for “page 2 of 7” · 1763ms

Patent

US1857447 Heating system for bake ovens

Cited prior art · Engels Eugene Oscar · Baker Perkins Inc · United States · 1932

6 to gas that this exhauster discharges from the the inlet header 7a of a flue radiator 7. One 5o enclosed circuit is replaced by fresh air to or more