Number | Name | Date | Kind |
---|---|---|---|
4324508 | Hilfiker et al. | Apr 1982 | |
4391557 | Hilfiker et al. | Jul 1983 | |
4470728 | Broadbent | Sep 1984 | |
4616959 | Hilfiker | Oct 1986 | |
4661023 | Hilfiker | Apr 1987 | |
4920712 | Dean | May 1990 | |
4929125 | Hilfiker | May 1990 | |
5066169 | Gavin et al. | Nov 1991 | |
5139369 | Jaecklin | Aug 1992 | |
5257880 | Janopaul | Nov 1993 | |
5417523 | Scales | May 1995 | |
5484235 | Hilfiker | Jan 1996 | |
5533839 | Shimada | Jul 1996 |
Number | Date | Country |
---|---|---|
0 679 768 | Feb 1995 | EPX |
402183014 | Jul 1990 | JPX |
WO 9413890 | Jun 1994 | WOX |
Entry |
---|
Sweet's Engineering and Retrofit: Mechanical, Civil/Structural 1993 Catalog File, published by McGraw-Hill (1993), Section 02276/ (KEY, ROC and AND) (Earth Retainage, Buylines 2802 (Keystone), 6342 (Rockwood), and 7682 (Diamond). |