Barrier Or Sustainer, E.g., Wall, Joist, Etc. Patents (Class 249/18)
- On footing or forming wall and footing (Class 249/34)
- Panel including means or having shape to form recessed surface in major face of wall (Class 249/35)
- Including means for forming spaced oposed walls or hollow wall (Class 249/36)
- Including means transverse to panel to form opening through major face of wall, e.g., door, window, etc. (Class 249/39)
- Including panel spacing means extending between and through panels, e.g., tie rod (Class 249/40)
- Having weakened area to aid severing (Class 249/41)
- Spacer means within mold cavity having plural threadedly fastened sections (Class 249/42)
- Including sleeve surrounding spacer means engaging opposed faces of panels (Class 249/43)
- Panel having plural adjoining sections (Class 249/44)
- Including wedge means engaging spacer means (Class 249/46)
- Panel having plural adjoining sections and means to secure together (Class 249/47)