发明名称 PLUMBING GRATE FIXTURE
摘要 A grate fixture adapted to cover a drainpipe having a bell-mouthed flaring with a planar edge and a circular groove near the edge. The fixture provides a grate portion to cover the mouth of the pipe and to allow liquids to flow therethrough. Releasable securing means extend downwardly into the opening of the pipe and removably secure the fixture to the pipe.
申请公布号 US3674149(A) 申请公布日期 1972.07.04
申请号 USD3674149 申请日期 1970.12.08
申请人 ALTON E. DONALSON 发明人 ALTON E. DONALSON
分类号 E03F5/04;(IPC1-7):B01D35/02 主分类号 E03F5/04
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