US2176951A
|
|
Phenol-butyraldehyde resin
|
US2150137A
|
|
Alpha-ethyl beta-propyl acrolein resins
|
US2128879A
|
|
Resinous impregnating material
|
US2128880A
|
|
Composition cork
|
US2055953A
|
|
Varnish compositions and method of making same
|
US2038113A
|
|
Molding composition
|
US2040033A
|
|
Production of plastic material from proteins
|
US2053850A
|
|
Production of plastic materials from proteins
|
US2059526A
|
|
Production of molding resins
|
US1970912A
|
|
Oil-soluble resin
|
US1948469A
|
|
Oil-soluble resin
|
US2012800A
|
|
Hinge
|
US2063240A
|
|
Synthetic resin varnish compositions
|
US2010123A
|
|
Synthetic varnish composition
|
US2033280A
|
|
Synthetic resin varnish compositions
|
US2033281A
|
|
Synthetic resin varnish compositions
|
US2063239A
|
|
Synthetic resin varnish compositions
|
US1988475A
|
|
Corn gluten plastic and method of making same
|