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发明名称
Gearless type pressure gauge
摘要
申请公布号
US1937879(A)
申请公布日期
1933.12.05
申请号
US19280301235
申请日期
1928.08.22
申请人
A C SPARK PLUG COMPANY
发明人
ESHBAUGH JESSE E.
分类号
G01L7/04
主分类号
G01L7/04
代理机构
代理人
主权项
地址
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