|
US2385449A
|
|
Fire extinguisher
|
|
US2228120A
|
|
Portable dry battery burglar alarm
|
|
US1952850A
|
|
Method and apparatus for galvanic deposition of copper and other metals
|
|
US1746731A
|
|
Process for the disintegration of matter
|
|
US1661043A
|
|
Process of producing magnesium oxide of high grade
|
|
US1714564A
|
|
Antifriction and antiabrasive metal
|
|
GB300149A
|
|
An improved method of producing metallic magnesium and apparatus therefor
|
|
US1650894A
|
|
Process for the production of magnesium from dolomite
|
|
US1650893A
|
|
Process for the production of magnesium from magnesia compounds
|
|
US1664630A
|
|
Process for the production of magnesium oxide
|
|
US1599618A
|
|
Process for forming metal compounds and mixtures involving phosphorus
|
|
US1479859A
|
|
Process for making antifriction metal
|
