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公开(公告)号:US1904391A
公开(公告)日:1933-04-18
申请号:US47078130
申请日:1930-07-26
Applicant: SOLIE HAROLD L , HEDLUND NELS J
Inventor: SOLIE HAROLD L , HEDLUND NELS J
IPC: B08B9/08
CPC classification number: B08B9/0843
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公开(公告)号:US2030641A
公开(公告)日:1936-02-11
申请号:US434035
申请日:1935-01-31
Applicant: HEDLUND NELS J
Inventor: HEDLUND NELS J
IPC: A01J15/08
CPC classification number: A01J15/08
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