|
| US4071968 | 3 Ago 1976 | 7 Feb 1978 | | Hexagonally shaped rotating display with tetrahedral elements |
| US4108535 | 3 Dic 1976 | 22 Ago 1978 | | Safety device for bicycle |
| US4503101 | 6 Sep 1983 | 5 Mar 1985 | The United States of America as represented by the Secretary of the Army | Foldable, pop-open corner reflector decoy target articles |
| US4708592 | 28 Oct 1986 | 24 Nov 1987 | Wind Production Company | Helicoidal structures, useful as wind turbines |
| US6363637 | 28 Abr 2000 | 2 Abr 2002 | | Spinning mobile |
