Method and device for collapsing bellows and the like,申请号US19290385450-传众专利搜索

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发明名称	Method and device for collapsing bellows and the like
摘要
申请公布号	US1907914(A)	申请公布日期	1933.05.09
申请号	US19290385450	申请日期	1929.08.12
申请人	WARD MARSHALL H	发明人	WARD MARSHALL H.
分类号	B21D15/06	主分类号	B21D15/06
代理机构		代理人
主权项
地址

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