Device for raising normally closed window sashes,申请号US19450606788-传众专利搜索

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发明名称	Device for raising normally closed window sashes
摘要
申请公布号	US2528396(A)	申请公布日期	1950.10.31
申请号	US19450606788	申请日期	1945.07.24
申请人	THE PENNSYLVANIA RAILROAD COMPANY	发明人	STEINS CARLETON K.
分类号	E05F11/44	主分类号	E05F11/44
代理机构		代理人
主权项
地址

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