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US1261743A
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Alloy.
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US1261742A
|
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Alloy.
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US1251341A
|
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Alloy.
|
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GB191315923A
|
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Improvements in Melting Furnaces, Ladles and like Containers for Molten Material.
|
|
GB191315924A
|
|
Improvements in the Production of Steel and in the Subsequent Treatment thereof.
|
|
GB191315922A
|
|
Improvements in or relating to Pyrometers.
|
|
GB190817759A
|
|
Improvements in Heat Treating and Quenching Alloyed Steels.
|
|
GB190814638A
|
|
Improvements in Apparatus for Indicating the Position of Sunken Ships and for Raising them.
|
|
GB190812383A
|
|
Improvement in Art of Producing Alloyed Steels.
|
|
US884009A
|
|
Art of producing alloyed steels.
|
|
US899713A
|
|
Heat treatment and quenching of alloyed steels.
|
|
GB190715498A
|
|
Improvements in Steel Alloys.
|
|
US868327A
|
|
Alloyed steel.
|
|
US883698A
|
|
Art of hardening and toughening steel.
|
|
GB190706554A
|
|
Improvements in and in the Production of Steel Alloys.
|
|
US867642A
|
|
Alloy steel.
|
|
US855756A
|
|
Art of heat treatments of steel alloys.
|
|
US845757A
|
|
Self-hardening alloy of steel.
|
|
US846979A
|
|
Steel alloy and its manufacture.
|
|
GB190628182A
|
|
Improvements in Annealing and Heat Treating Steel Alloys.
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