US2036245A
|
|
Alloy
|
US1925292A
|
|
Method of sintering metallic bodies
|
US1856607A
|
|
Process for producing sintered alloys
|
US1961468A
|
|
Sintered alloy
|
US1811068A
|
|
Alloy
|
US1864567A
|
|
Alloy of azotized character
|
US2018752A
|
|
Alloy
|
US1803276A
|
|
Process for producing homogeneous metalliform carbonitrides and for superficial nitrification of tungsten
|
US1803882A
|
|
Metal composition
|
US1651492A
|
|
Process of desulphurizing molten metal and briquettes used therefor
|
CA314776A
|
|
Process of producing metal nitrides
|
CA316085A
|
|
Metal composition
|
CA316084A
|
|
Alloy
|