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1 result for “page 2 of 7” · 2209ms

Patent

US2449858 Burner safety control system

Cited prior art · Ottmar Jerome · Metals and Controls Corp · United States · 1948

elements snap to their posi tact 6. In the meantime switch bar 2 is held in 70 tion of Opposite curvature. This snapping oper its dotted line position since, as pointed