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发明名称
Plastic vent control
摘要
申请公布号
US3411374(A)
申请公布日期
1968.11.19
申请号
US19670635760
申请日期
1967.05.03
申请人
SPRINGTROL, INC.
发明人
HOLLY JOSEPH A.
分类号
F16C1/26
主分类号
F16C1/26
代理机构
代理人
主权项
地址
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