Swivelly mounted ladder stabilizer,申请号US19440529152-传众专利搜索

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发明名称	Swivelly mounted ladder stabilizer
摘要
申请公布号	US2371460(A)	申请公布日期	1945.03.13
申请号	US19440529152	申请日期	1944.04.01
申请人	NEEDHAM EDWARD F	发明人	NEEDHAM EDWARD F.
分类号	E06C7/44	主分类号	E06C7/44
代理机构		代理人
主权项
地址

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