Number | Name | Date | Kind |
---|---|---|---|
1900205 | Sherrill | Mar 1933 | |
4055927 | Tamaro | Nov 1977 | |
4329089 | Hilfiker et al. | May 1982 | |
4391557 | Hilfiker et al. | Jul 1983 | |
4643618 | Hilfiker et al. | Feb 1987 | |
4961673 | Pagano et al. | Oct 1990 | |
5002436 | Sigourney | Mar 1991 | |
5356242 | Elmore et al. | Oct 1994 |
Number | Date | Country |
---|---|---|
2131063 | Jun 1984 | GBX |
Entry |
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Hilfiker Literature, date unknown but prior to 1993. "VSL Retained Earth Metal Facing Wall System Installation Manual" brochure. On information and belief, this document was submitted to the Florida Department of Transportation in 1991 or early 1992. |