发明名称 TAMPER RESISTANT SEAL PLUG
摘要 A tamper resistant seal plug is fitted over a screw head within a recess provided by an upstanding wall surrounding the screw head. The plug is an open ended cup shaped member which is readily insertable open end first into the recess. Removal of the plug for access to the screw head may only be effected through destruction of the plug. The end closure of the plug is breakable to effect its removal and provide an indication of tampering. A distinctive design on the exposed seal plug surface makes duplication impractical.
申请公布号 DE3464789(D1) 申请公布日期 1987.08.20
申请号 DE19843464789 申请日期 1984.04.11
申请人 THE SINGER COMPANY 发明人 RUDDY, DONALD C.
分类号 G01R11/24;F16B41/00;G01F3/00;G01F15/00;G09F3/03;(IPC1-7):F16B41/00 主分类号 G01R11/24
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