|
| US4120261 | 25 Nov 1977 | 17 Oct 1978 | Caterpillar Tractor Co. | Electrostatic coating system |
| US4158344 | 9 Nov 1977 | 19 Jun 1979 | Caterpillar Tractor Co. | Electrostatic coating system |
| US4344381 | 29 Dic 1980 | 17 Ago 1982 | Allied Tube & Conduit Corporation | Apparatus for continuously electrostatically coating an elongated object |
| US4538542 | 16 Jul 1984 | 3 Sep 1985 | Nordson Corporation | System for spray coating substrates |
| US4635585 | 15 Oct 1985 | 13 Ene 1987 | Nordson Corporation | System for spray coating substrates |
| US5192369 | 8 Nov 1991 | 9 Mar 1993 | British Technology Group Ltd. | Apparatus for spraying harvested crops |
| US5698269 | 20 Dic 1995 | 16 Dic 1997 | PPG Industries, Inc. | Electrostatic deposition of charged coating particles onto a dielectric substrate |
| US5830274 | 20 Dic 1995 | 3 Nov 1998 | PPG Industries, Inc. | Electrostatic deposition of charged coating particles onto a dielectric substrate |