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US1965251A
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Electroplating bath
|
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Process for recovering certain metals of the third periodic group
|
|
US1946508A
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Antitarnishing material for silverware and other metals and process of producing the same
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Intimate mixture or alloy
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GB359014A
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Improvements in and relating to tarnish-resisting alloys and methods of rendering tarnishable metals or alloys tarnish resisting
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Copper-indium alloy
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Indium recovery process
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US1886831A
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Method of and apparatus for pressing materials into molds
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Soldering apparatus
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Process of obtaining indium and zinc from ores containing the same
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Electroplated chromium aritcle
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Process for the recovery of indium
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High-pressure hydraulic press
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Storage and display device for flat tableware articles
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US1935630A
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Process of electrodepositing indium and indium and silver
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Process of electrodepositing indium
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Rack for flat tableware
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Process for recovering certain metals of the third periodic group
|
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US1847941A
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Metal alloys and process of producing the same
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US1773702A
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Process for producing tarnish-resisting silver and silver plate
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