Spring heel for footwear,申请号US19470762387-传众专利搜索

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发明名称	Spring heel for footwear
摘要
申请公布号	US2454951(A)	申请公布日期	1948.11.30
申请号	US19470762387	申请日期	1947.07.21
申请人	SMITH HERBERT H	发明人	SMITH HERBERT H.
分类号	A43B21/30	主分类号	A43B21/30
代理机构		代理人
主权项
地址

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