发明名称 |
MULTIPLE FUNCTIONAL GRATING FILTER FOR INDOOR FLOOR WATER TRAPS |
摘要 |
<p>The present invention provides a multiple functional grating filter for being able to reduce the noises and prevent sewer gases from entering buildings. The present invention also provides a plumbing system comprising a multiple functional grating filter and a trap pipe; thereby the plumbing system has dual mechanisms for preventing sewer gases from entering buildings.</p> |
申请公布号 |
WO2009088358(A1) |
申请公布日期 |
2009.07.16 |
申请号 |
WO2008SG00004 |
申请日期 |
2008.01.07 |
申请人 |
ZHU, CHUN BAO;NANYANG POLYTECHNIC |
发明人 |
ZHU, CHUN BAO |
分类号 |
E03C1/20;E03C1/12;E03C1/264;E03C1/282;E03F3/04 |
主分类号 |
E03C1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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