|
US2117934A
|
|
Building construction
|
|
US2049190A
|
|
Building construction
|
|
US2050258A
|
|
Building construction
|
|
US2050257A
|
|
Concrete form
|
|
US2050256A
|
|
Building construction
|
|
US2031631A
|
|
Building construction
|
|
US2054189A
|
|
Building construction
|
|
US1992054A
|
|
Paneling arrangement
|
|
US1929301A
|
|
Feeding apparatus for plastic mixtures
|
|
US1984781A
|
|
Building heating
|
|
US2097613A
|
|
Process and apparatus for making and coloring cement fiber and the like products
|
|
US1958124A
|
|
Building construction
|
|
US1980900A
|
|
Building construction
|
|
US1960399A
|
|
Apparatus for manufacture of artificial lumber
|
|
US1873279A
|
|
Apparatus for manufacture of sheet material
|
|
US1905921A
|
|
Casement locking mechanism
|
|
US1873438A
|
|
Mixer
|
|
GB362575A
|
|
Building construction
|
|
US1905896A
|
|
Strand treating apparatus and method
|
|
US1921524A
|
|
Method of making insulating blocks
|
