Speed controlled motor-driven gate,申请号US19440563943-传众专利搜索

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发明名称	Speed controlled motor-driven gate
摘要
申请公布号	US2451373(A)	申请公布日期	1948.10.12
申请号	US19440563943	申请日期	1944.11.17
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	BEALL CHARLES R.
分类号	B61L29/24;F16D65/14	主分类号	B61L29/24
代理机构		代理人
主权项
地址

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