,申请号BED689036-传众专利搜索

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发明名称
摘要	1,167,016. Self-tapping screws. PARKERKALON CORP. 3 Nov., 1966 [3 Nov., 1965], No. 49249/66. Heading B3N. [Also in Division F2] A self-tapping screw 20 in which the underside 23 of the head is of spherical form.
申请公布号	BE689036(A)	申请公布日期	1967.03.31
申请号	BED689036	申请日期	1966.10.28
申请人		发明人
分类号	F16B25/00;F16B33/00;F16B43/00;F16B43/02	主分类号	F16B25/00
代理机构		代理人
主权项
地址

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