发明名称 KUNSTSTOFFROHRMUFFE
摘要 <p>A bell and spigot pipe joint including a bell end having a locked in sealing gasket and a thickened cross-sectional configuration is disclosed herein. A method and an assembly for making the bell end with its thickened cross-sectional configuration and with the sealing gasket locked in place are also disclosed herein.</p>
申请公布号 DD138355(A1) 申请公布日期 1979.10.24
申请号 DD19780207390 申请日期 1978.08.21
申请人 JOHNS-MANVILLE CORP,US 发明人 FRENCH,DAVID W.,US
分类号 F16L21/02;B29C53/00;B29C57/02;B29C65/00;B29C65/02;B29C65/78;(IPC1-7):F16L47/06 主分类号 F16L21/02
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