| Number | Name | Date | Kind |
|---|---|---|---|
| D411315 | Bott | Jun 1999 | |
| 4229123 | Heinzmann | Oct 1980 | |
| 5161918 | Hodel | Nov 1992 | |
| 5505034 | Dueck | Apr 1996 | |
| 5791827 | Arvai et al. | Aug 1998 | |
| 5865066 | Dawson | Feb 1999 |
| Entry |
|---|
| "consolidation procedures", figs. 3.2.1 and 3.2.2, p. 46 of Architectural Precast Concrete by the Prestressed Concrete Insistitute, Chicago Ill, 1973. |
| Diamond Wall System, American Masonry Products broshure. patent shoe , 1989. |