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发明名称
Safety device
摘要
申请公布号
US2494498(A)
申请公布日期
1950.01.10
申请号
US19450607720
申请日期
1945.07.30
申请人
GENERAL MOTORS CORPORATION
发明人
WILLIAMS LAWRENCE;VOSLER EDWARD J.
分类号
B23D39/00;B30B15/28
主分类号
B23D39/00
代理机构
代理人
主权项
地址
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