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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0971536 (1978-12-20) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 36 인용 특허 : 0 |
A method and apparatus for trouble-shooting an irrigation system having a plurality of independently operable irrigation branches and an automatic controller for control of water flow in the branches is disclosed. A radio transmitter and a radio receiver are tuned for the transmission and receipt of
A method for trouble-shooting an irrigation system having a source of water, a plurality of independent irrigation branches, valve means connecting said branches to said source of water, and a completely self-contained controller means having a water supply control portion connected for control of t
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