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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0297557 (1981-08-31) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 7 인용 특허 : 1 |
A land irrigation system is illustrated in which an elongated sprinkler line continuously travels in a direction transverse to its length along the length dimension of a stationary water main and is continuously supplied with water from upstanding hydrants spaced along the length of the water main.
In a land irrigation system including a water main having a plurality of water hydrants projecting upwardly from the water main at spaced points along its length, an elongated sprinkler line extending transversely to the length dimension of the water main, tractor means movable along said water main
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