Spring tension unit for drawing mechanism,申请号US19410375141-传众专利搜索

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发明名称	Spring tension unit for drawing mechanism
摘要
申请公布号	US2301701(A)	申请公布日期	1942.11.10
申请号	US19410375141	申请日期	1941.01.21
申请人	WHITIN MACHINE WORKS	发明人	HENDRICKSON FRED K.
分类号	D01H5/50	主分类号	D01H5/50
代理机构		代理人
主权项
地址

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