发明授权
- 专利标题： Sound collecting block and sound absorbing wall system
- 专利标题（中）： 收音块和吸音墙系统
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申请号： US438229申请日： 1995-05-09
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公开(公告)号： US5551198A公开(公告)日： 1996-09-03
- 发明人: Cecil F. Schaaf , Craig R. Schaaf
- 申请人： Cecil F. Schaaf , Craig R. Schaaf
- 专利权人： Schaaf; Cecil F.,Schaaf; Craig R.
- 当前专利权人： Schaaf; Cecil F.,Schaaf; Craig R.
- 主分类号： E01F8/02
- IPC分类号： E01F8/02 ; E02D29/02 ; E04B1/84 ; E04B1/82
摘要：
This invention deals with novel sound collecting blocks and their use, in conjunction with novel connector blocks, to build inexpensive, decorative sound walls. This invention also deals with retaining walls which are constructed from the novel connector block, and other non-sound absorbing solid blocks.
公开/授权文献
- USD314614S Heater or cooling fan 公开/授权日：1991-02-12
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