发明名称 METHOD OF MAKING STRUCTURAL ELEMENT
摘要 A hollow structural element and a method of making the same are disclosed. The structural element is bounded by outer peripheral walls at least some of which are provided with coupling elements. It consists of a plurality of discrete sections which together have the configuration of the completed hollow structural element, and which are assembled and connected with one another, releasably or non-releasably, so as together have the configuration of the structural element.
申请公布号 US3676918(A) 申请公布日期 1972.07.18
申请号 USD3676918 申请日期 1970.01.28
申请人 ARTUR FISCHER 发明人 ARTUR FISCHER
分类号 A63H33/04;(IPC1-7):B23P11/02 主分类号 A63H33/04
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