发明名称 |
Pollen filter |
摘要 |
An air-permeable filter material for use on doors, door frames, windows or window frames and a method of using the filter material to protect against the ingress of pollen and dirt particles in the environment. The filter material may be composed of fabric or film or a combination of film and fabric, the material having perforations of a diameter of 2-250 mu m, and a fixing material for applying the filter material.
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申请公布号 |
US5951727(A) |
申请公布日期 |
1999.09.14 |
申请号 |
US19970965894 |
申请日期 |
1997.11.07 |
申请人 |
BEIERSDORF AG |
发明人 |
SPIES, MANFRED;RADEMACHER, HEIKE;KOZACZKA, ZYGMUT;PAPON, KLAUS EBERHARD |
分类号 |
A47H23/08;B01D46/10;E06B9/52;(IPC1-7):B01D46/18 |
主分类号 |
A47H23/08 |
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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