Door-holding means and release,申请号US19290412196-传众专利搜索

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发明名称	Door-holding means and release
摘要
申请公布号	US1804443(A)	申请公布日期	1931.05.12
申请号	US19290412196	申请日期	1929.12.06
申请人	ELECTRIC SERVICE SUPPLIES COMPANY	发明人	SMITH WALTER H.
分类号	B61D19/02	主分类号	B61D19/02
代理机构		代理人
主权项
地址

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