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经营范围
发明名称
HELICAL THREAD SLIDING CLASP FASTENERS
摘要
申请公布号
CA657977(A)
申请公布日期
1963.02.19
申请号
CAD657977
申请日期
申请人
WALTER E. HEILMANN
发明人
HUGO WILCKEN
分类号
主分类号
代理机构
代理人
主权项
地址
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