Snatch block,申请号US19390251601-传众专利搜索

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发明名称	Snatch block
摘要
申请公布号	US2206442(A)	申请公布日期	1940.07.02
申请号	US19390251601	申请日期	1939.01.18
申请人	ARMSTRONG GEORGE J	发明人	ARMSTRONG GEORGE J.
分类号	B66D3/04	主分类号	B66D3/04
代理机构		代理人
主权项
地址

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