发明名称 A connection shaft device for screws
摘要 <p>A fastener device for securing two mold boards spaced from each other for forming a concrete wall member between the mold boards, the fastener device comprising a connection rod disposed between the mold boards, two connecting members attached to the connection rod and engaged through the mold boards and engaged with the mold boards for positioning the mold boards in place relative to each other, and two bracing members attached to the outer ends of the connecting members and engaged with the mold boards for further positioning the mold boards in place relative to each other, two frame members are engaged with the mold boards and secured to the mold boards with lock members.</p>
申请公布号 AU2011100360(A4) 申请公布日期 2011.05.12
申请号 AU20110100360 申请日期 2011.04.04
申请人 LI-MEI LIN 发明人 LI-MEI LIN
分类号 E04B1/00;E04B1/12;E04B2/86 主分类号 E04B1/00
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