发明名称 Protective housing for sewer or septic clean-out lines
摘要 A protective cover for sewer clean-out lines for protection of the termination end of the sewer clean-out line, but permitting access to the sewer clean-out line, the housing having a cast iron collar with removable cover made into an ABS plastic skirt by force fitting, the plastic skirt having a flared lower end to maintain the position of the housing with the upper surface and cover of the cast iron collar being flush with the level of the ground.
申请公布号 US5769565(A) 申请公布日期 1998.06.23
申请号 US19960699508 申请日期 1996.08.19
申请人 C.P. TEST SERVICES-VALVCO, INC. 发明人 MARTIN, JR., THOMAS J.;MARTIN, GLENN
分类号 E03F5/02;(IPC1-7):E02D29/14 主分类号 E03F5/02
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