| 申请人 |
BT & D TECHNOLOGIES LTD., IPSWICH, SUFFOLK, GB |
发明人 |
ESTRADA, CALIXTO, BEAR, DE 19701, US;HAMERSLAG, JAMES, DAVID, WEST CHESTER, PA 19382, US;HOOLEY, ROBERT, WENDROTH, GREENVILLE, DE 19807-4512, US;HUNT, JOHN, WESLEY, WILMINGTON, DE 19806, US;JOHNSON, MELVIN, HARRY, CHADDS FORD, PA 19317, US;MC CABE, DUNCAN, DOUGLAS, WILMINGTON, DE 19809, US;PERROTTO, JOSEPH, ANTHONY, LANDENBERG, PA 19350, US |
