|
US2135544A
|
|
Faced building element
|
|
US2090618A
|
|
Vitreous enamel organosol
|
|
US2058209A
|
|
Vitreous enamel dispersions
|
|
US2090617A
|
|
Vitreous enamel organosols
|
|
US2137930A
|
|
Process of smelting enamel
|
|
US2021820A
|
|
Production of articles having a multicolor finish
|
|
US1882344A
|
|
Production of porcelain enamels
|
|
US2021819A
|
|
Production of porcelain enameled articles of changeable color
|
|
US1993196A
|
|
Production of enameled articles carrying a gloss and matt finish
|
|
US1762001A
|
|
Grate or burning bar for enameling furnaces
|
|
CA411511A
|
|
Vitreous enamel charging and smelting apparatus
|
|
CA411510A
|
|
Vitreous enamel melting and fining method
|
