| 发明名称 |
Acoustical ceiling tile |
| 摘要 |
A ceiling tile includes a first layer and a second layer. The first layer includes first and second planar surfaces. The second layer is comprised of at least ten (10) percent fiberglass by weight and is joined adjacent to the first planar surface.
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| 申请公布号 |
US2004016184(A1) |
申请公布日期 |
2004.01.29 |
| 申请号 |
US20020206385 |
申请日期 |
2002.07.26 |
| 申请人 |
HUEBSCH ROBERT J.;HUTMACHER JOERG F. |
发明人 |
HUEBSCH ROBERT J.;HUTMACHER JOERG F. |
| 分类号 |
E04B1/84;E04B9/00;(IPC1-7):E04B1/82;E04B2/00;E04B5/00 |
主分类号 |
E04B1/84 |
| 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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