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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0317659 (1994-10-03) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
The present invention relates to a water pipe for filtering the smoke from cigarettes. The water pipe includes a water chamber having an open upper end, a releasible closure for sealing the open upper end of the water chamber, a first and second opening through the water chamber, both of the first a
A water-pipe comprising: a water chamber having a completely open upper end, a bottom surface, and walls connecting said completely open upper end and said bottom surface; said walls of said water chamber having a first opening therethrough and a second opening therethrough, both of said first and s
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