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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0581790 (1984-02-21) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 3 인용 특허 : 4 |
An automatic larvicide dispensing apparatus which is actuated by weather conditions. A container for holding liquid larvicide has a sealed cylinder disposed therein and a piston reciprocally disposed within such cylinder. This piston is biased to one position within the cylinder and is movable to a
An automatic larvicide pump dispenser comprising: container means for holding liquid larvicide; a discharge port connected to said container means; a sealed cylinder disposed within said container; a piston reciprocally disposed within said cylinder and being sealed at the edges thereof against the
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