Number | Name | Date | Kind |
---|---|---|---|
3016556 | Greenleaf | Jan 1962 | |
3327376 | Freeman et al. | Jun 1967 | |
4135692 | Ferguson | Jan 1979 | |
4163576 | Hoop | Aug 1979 | |
4225108 | Jaroche | Sep 1980 | |
4269087 | Wand | May 1981 | |
4323215 | Berger | Jul 1982 | |
4564165 | Grant et al. | Jan 1986 |
Entry |
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"Ladderless Clips and Poles", advertisement in Hang-Ups Unlimited. |
"Jet System", advertisement in The Point of Sale Centre. |