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Gas conversion assembly for a vaporizing oil burner
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Combination gas-oil burner apparatus
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Gas pilot arrangement for burner apparatus
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Combustion head for burner apparatus
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Horizontally fired gas-oil burner
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Horizontally fired gas-oil burner
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Interlocking switch structure for electrically operated valves
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Combination oil and gas burner
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Combination gas and oil burner and control therefor
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Control system for combined oil and gas burners
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Combination oil and gas burner
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