Spring applied vacuum released brake,申请号US19470725866-传众专利搜索

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发明名称	Spring applied vacuum released brake
摘要
申请公布号	US2499154(A)	申请公布日期	1950.02.28
申请号	US19470725866	申请日期	1947.02.01
申请人	NIELSEN MARTIN E	发明人	NIELSEN MARTIN E.
分类号	B60T13/50	主分类号	B60T13/50
代理机构		代理人
主权项
地址

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