|
US2413562A
|
|
Precast concrete members
|
|
US2420427A
|
|
Precast reinforced concrete members
|
|
US2423936A
|
|
Precast reinforced concrete member
|
|
US2414738A
|
|
Precast concrete corrugated connection
|
|
US2396045A
|
|
Precast reinforced concrete member
|
|
US2306107A
|
|
Form for molding building members
|
|
US2351856A
|
|
Panel-wall building construction
|
|
US2294556A
|
|
Floating external wall for buildings
|
|
US2261736A
|
|
Gang mold
|
|
US2294554A
|
|
Fireproof enclosure for building frames
|
|
US2174036A
|
|
Retaining wall for basement windows
|
|
US2208844A
|
|
Wall and step construction
|
|
US2184974A
|
|
Retaining wall
|
|
US2219043A
|
|
Floor construction
|
|
US2228763A
|
|
Sidewalk construction
|
|
US2157290A
|
|
Drain for foundation walls
|
|
US2239195A
|
|
Method and apparatus for molding slabs
|
|
US2250020A
|
|
Molding apparatus
|
|
US2154937A
|
|
Step construction
|
|
US2171338A
|
|
Building member and construction
|
