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发明名称
Automatic pressure adjusting means
摘要
申请公布号
US1907146(A)
申请公布日期
1933.05.02
申请号
US19280269480
申请日期
1928.04.12
申请人
THE PROSPERITY COMPANY, INC.
发明人
DAVIS ERNEST
分类号
D06F71/06
主分类号
D06F71/06
代理机构
代理人
主权项
地址
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