Road beacons of welded polyolefins,申请号FR19690006478-传众专利搜索

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发明名称	Road beacons of welded polyolefins
摘要	Thick polyolefin, pref. polyethylene, articles are welded. The two thicknesses are pressed between a massive metal piece and another metal piece which has a zigzag-profiled electric heating resistance, whose temp. is raised to 750 degrees C.
申请公布号	FR2036727(A1)	申请公布日期	1970.12.31
申请号	FR19690006478	申请日期	1969.03.07
申请人	ROZIER HENRY	发明人
分类号	B29C65/18;E01F9/012	主分类号	B29C65/18
代理机构		代理人
主权项
地址

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