Spring drive apparatus,申请号US19570693881-传众专利搜索

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发明名称	Spring drive apparatus
摘要
申请公布号	US2914956(A)	申请公布日期	1959.12.01
申请号	US19570693881	申请日期	1957.11.01
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人	MACLAY WILLIAM R.
分类号	F16H33/02;G04B1/22	主分类号	F16H33/02
代理机构		代理人
主权项
地址

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