发明名称 |
Concrete stairs use pre-manufactured step elements, each comprising a step a riser and string pieces forming a shoulder to cooperate with the top step |
摘要 |
Pre-manufactured concrete stairs is an assembly of step elements (1), each comprising a step (2) a riser (3) and string pieces (5,6). The string pieces form a shoulder (7) behind the riser to receive the step of the element to be placed on top.
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申请公布号 |
FR2801619(A1) |
申请公布日期 |
2001.06.01 |
申请号 |
FR19990015059 |
申请日期 |
1999.11.30 |
申请人 |
HOLDING PBM |
发明人 |
DEMAEGDT CLAUDE;DUVAL CHRISTOPHE |
分类号 |
E04F11/035;E04F11/09;(IPC1-7):E04F11/035;E04F11/025 |
主分类号 |
E04F11/035 |
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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