최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0235928 (1994-05-02) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 9 인용 특허 : 4 |
A duster attachment includes a closed bottom, upwardly opening cylindrical container. An upright vacuum tube has its lower end secured through the bottom of the container and includes an upper end provided with variable air inlet structure. A closed top and downwardly opening pilot tube is loosely t
A duster including an upwardly opening container having a bottom wall provided with a central opening formed therein, an upstanding vacuum tube including a lower outlet end secured to said bottom wall about said opening and an upper inlet end spaced at least appreciably above said bottom wall, trans
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