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The Bell Aircraft Corporation was an American aircraft manufacturer, a builder of several types of fighter aircraft for World War II but most famous for the Bell X-1, the first supersonic aircraft, and for the development and production of many important civilian and military helicopters.
선: 월별 평균
| 기간 | 핀 뉴스 |
|---|---|
| 1947년 10월 | +1.00 (1) |