Number | Name | Date | Kind |
---|---|---|---|
3761488 | Lewis et al. | Sep 1973 | |
4265899 | Lewis et al. | May 1981 | |
4279762 | Lewis et al. | Jul 1981 | |
4325201 | Lewis et al. | Apr 1982 | |
4507152 | Collins et al. | Mar 1985 | |
4783221 | Grove | Nov 1988 | |
4954338 | Mattox | Sep 1990 | |
5200188 | Mattox | Apr 1993 | |
5223524 | Valcke | Jun 1993 |
Number | Date | Country |
---|---|---|
148526 | Jul 1984 | EPX |
Entry |
---|
American Wood-Preservers' Association Standard, p. 14 (1992) no month. |