|
US1696106A
|
|
Water-deactivating apparatus
|
|
US1617726A
|
|
Manufacture of steel
|
|
US1685886A
|
|
Concrete-reenforcing member
|
|
US1531993A
|
|
Water-treating compound
|
|
US1531992A
|
|
Protective coating for water-distributing systems and method of forming same
|
|
US1531990A
|
|
Water-deactivating briquette and method of making same
|
|
US1531991A
|
|
Water deactivator and method of making same
|
|
US1531989A
|
|
Method of removing free oxygen from water
|
|
US1592647A
|
|
Method and means for deactivation of water
|
|
CA188030A
|
|
Apparatus for deoxidizing water
|
|
US1274099A
|
|
Apparatus for heating and deoxidizing water.
|
|
CA176624A
|
|
Welded pipe
|
|
US900323A
|
|
Method of reducing the corrosive action of water.
|
|
US773684A
|
|
Recording-pyrometer.
|
|
US774341A
|
|
Recording-calorimeter for gas.
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