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发明名称
Metal bellows
摘要
申请公布号
US2811173(A)
申请公布日期
1957.10.29
申请号
US19540428994
申请日期
1954.05.11
申请人
PROCESS ENGINEERING INC.
发明人
BENSON WALTER L.
分类号
F16J3/04
主分类号
F16J3/04
代理机构
代理人
主权项
地址
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