US2381215A
|
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Burner control apparatus
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US2312834A
|
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Gas pilot burner
|
US2395868A
|
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Gas heating burner
|
US2207150A
|
|
Centrifugally cast plunger and tube
|
US2210404A
|
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Heat control apparatus
|
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|
|
Automatic gas and water regulator
|
DE668580C
|
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Composite body made of preformed iron or steel with a one-sided coating made of an iron-boron alloy
|
GB462284A
|
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Cast iron alloy
|
GB462285A
|
|
Improvements in and relating to lined metal cylinders and other lined metal articles
|
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Hard ferrous alloy
|
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Hard ferrous-lined tube
|
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|
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Thermostatic fuel control
|
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|
|
Hard cast iron alloy
|
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Process of making a hard lining metal
|
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Apparatus for the metal lining of pipes
|
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|
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Process for removing tannin from apple juice
|
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|
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Copper-lead alloy process
|