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公开(公告)号:US1569806A
公开(公告)日:1926-01-12
申请号:US1569806D
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/04 , E01B2201/06
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公开(公告)号:US1505090A
公开(公告)日:1924-08-19
申请号:US61691723
申请日:1923-02-05
Applicant: DIENNER JOHN A , MABEE ALEXANDER C
Inventor: DIENNER JOHN A , MABEE ALEXANDER C
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/02 , E01B2201/06 , E01B2201/10
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公开(公告)号:US1428378A
公开(公告)日:1922-09-05
申请号:US55835222
申请日:1922-05-04
Applicant: HESS JOHN J , NELS JOHNSON
Inventor: HESS JOHN J , NELS JOHNSON
CPC classification number: E01B13/02 , E01B2201/06
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公开(公告)号:US1401856A
公开(公告)日:1921-12-27
申请号:US45215221
申请日:1921-03-14
Applicant: ROBERT ANGUS WILLIAM ANDREW
Inventor: ROBERT ANGUS WILLIAM ANDREW
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/06
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公开(公告)号:US1382024A
公开(公告)日:1921-06-21
申请号:US37531920
申请日:1920-04-20
Applicant: SIMS FREDERICK L H
Inventor: SIMS FREDERICK L H
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/02 , E01B2201/06
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