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| Number | Title | Issue Date |
| 4676035 | Reinforced concrete panels with improved welded joint A wall construction formed from a plurality of pre-cast reinforced concrete building panels each of which includes interior and exterior faces defined peripherally by upper and lower end edges and opposed side edges extending therebetween. The plurality o... | 06/30/1987 |
| 4320606 | Reinforced concrete panels and building constructed therewith A building formed by assembling a multiplicity of pre-cast reinforced concrete panels including horizontal footer panels, solid exterior vertical panels, exterior vertical corner panels, exterior vertical door panels, exterior vertical window panels, inte... | 03/23/1982 |