|
| US3940171 | 26 Apr 1973 | 24 Feb 1976 | | Lifting device, particularly for lifting and transporting building boards, such as plaster and wood particle boards |
| US4010931 | 26 Mar 1976 | 8 Mar 1977 | | Door lifting and holding tool |
| US4098442 | 28 Apr 1976 | 4 Jul 1978 | | Panel carrier |
| US4190278 | 17 Nov 1976 | 26 Feb 1980 | | Panel carrying device |
| US4712819 | 7 Jun 1982 | 15 Dec 1987 | | Tool for lifting doors and panels |
| US5190329 | 10 Feb 1992 | 2 Mar 1993 | | Hand actuated load lifting device |
| US5501496 | 20 Jul 1990 | 26 Mar 1996 | | Wire mesh puller |
| US6022008 | 11 Feb 1998 | 8 Feb 2000 | | Door hanging jack |
| US6241297 | 20 Dec 1999 | 5 Jun 2001 | Telpro Inc. | Collapsible panel carrying device |
| US6505844 | 16 Feb 2001 | 14 Jan 2003 | | Door transporting and support system |
