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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0364210 (1982-04-01) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 0 |
An irrigation system includes an elongate pipe having a plurality of water discharge ports spaced along its length. Each port is individually adjustable, such as by means of a collar about the pipe, to deliver water in a straight stream, spray, trickle, drip, or to be closed completely so that no wa
An irrigation system for supplying water in selected quantities to selected areas, comprising an elongate pipe having a plurality of water discharge ports spaced therealong; an equal plurality of collar means mounted about the pipe for rotation, each collar means being associated with a different on
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