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发明名称
VARIABLE RESISTANCE DEVICE AND METHOD FOR MAKING SUCH DEVICE
摘要
申请公布号
CA732748(A)
申请公布日期
1966.04.19
申请号
CAD732748
申请日期
申请人
BECKMAN INSTRUMENTS
发明人
WILFRED MCCANN
分类号
主分类号
代理机构
代理人
主权项
地址
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