Number | Name | Date | Kind |
---|---|---|---|
1979802 | Kinley | Nov 1934 | |
2403386 | Lubelsky et al. | Jul 1946 | |
3126827 | McReynolds, Jr. | Mar 1964 | |
3208381 | Kihlstrom et al. | Sep 1965 | |
3264992 | Beck | Aug 1966 | |
3608491 | Botes | Sep 1971 | |
4464994 | Porter | Aug 1984 | |
4470352 | Leperre | Sep 1984 | |
4492165 | Marz | Jan 1985 | |
4660644 | Egnor | Apr 1987 | |
4754705 | Worsey | Jul 1988 | |
5092245 | Douglas et al. | Mar 1992 | |
5198613 | Jenkins, Jr. | Mar 1993 |
Number | Date | Country |
---|---|---|
101332 | Oct 1925 | ATX |
Entry |
---|
Pit & Quarry, Jan. 1995, Blasting Up Close Stem Tite Blast Control Plugs, advertising. |
Max-Blast Stemming Plugs advertising, Skaggs Bit & Tool Co., St. Louis, MO The Blast Stops Here advertising, Caps Grips & Plugs, Inc. Jan. 1, 1996. |
"Explosives," The Journal of Explosives Engineering, Nov./Dec. 1996 Pit & Quarry, Sep. 1996, Stemming the Tide by Richard O'Meara. |