Hand and power-operated gearing,申请号US19510255216-传众专利搜索

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发明名称	Hand and power-operated gearing
摘要
申请公布号	US2690085(A)	申请公布日期	1954.09.28
申请号	US19510255216	申请日期	1951.11.07
申请人	ROCKWOOD SPRINKLER COMPANY	发明人	FREEMAN HOWARD G.
分类号	A62C31/24;F15B13/10;F41A27/22;F41A27/26	主分类号	A62C31/24
代理机构		代理人
主权项
地址

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