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公开(公告)号:US1789855A
公开(公告)日:1931-01-20
申请号:US30405228
申请日:1928-09-05
Applicant: JORDAN & TAYLOR INC
Inventor: WHITE ARTHUR F , JORDAN FRANK W
IPC: F04F1/18
CPC classification number: F04F1/18 , Y10T137/2934 , Y10T137/7738 , Y10T137/7846
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公开(公告)号:US1779932A
公开(公告)日:1930-10-28
申请号:US32156328
申请日:1928-11-24
Applicant: ROBERT DEMING
Inventor: ROBERT DEMING
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公开(公告)号:US1756830A
公开(公告)日:1930-04-29
申请号:US20668527
申请日:1927-07-18
Applicant: UNION OIL CO
Inventor: MARSHALL HARRY C
IPC: F04F1/18
CPC classification number: F04F1/18 , E21B43/122 , Y10T137/402 , Y10T137/8593 , Y10T137/87249 , Y10T137/87877
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公开(公告)号:US1747277A
公开(公告)日:1930-02-18
申请号:US22230527
申请日:1927-09-27
Applicant: CLIFFORD O MORRISON
Inventor: WELDON MELVIN E
IPC: F04F1/18
CPC classification number: F04F1/18
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45.
公开(公告)号:US1745085A
公开(公告)日:1930-01-28
申请号:US4588525
申请日:1925-07-24
Applicant: DENTON CHARLES E
Inventor: DENTON CHARLES E
IPC: F04F1/18
CPC classification number: F04F1/18 , Y10T137/3071 , Y10T137/7481
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公开(公告)号:US1697856A
公开(公告)日:1929-01-08
申请号:US19849627
申请日:1927-06-13
Applicant: ROBERT DEMING
Inventor: ROBERT DEMING
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公开(公告)号:US1683930A
公开(公告)日:1928-09-11
申请号:US20255527
申请日:1927-06-30
Applicant: STAGGS HORACE M
Inventor: STAGGS HORACE M
IPC: F04F1/18
CPC classification number: F04F1/18
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公开(公告)号:US1670957A
公开(公告)日:1928-05-22
申请号:US15866227
申请日:1927-01-03
Applicant: DE WITT GALE B
Inventor: DE WITT GALE B
IPC: F04F1/18
CPC classification number: F04F1/18
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公开(公告)号:US1604419A
公开(公告)日:1926-10-26
申请号:US64553623
申请日:1923-06-15
Applicant: SULLIVAN MACHINERY CO
Inventor: JOHN OLIPHANT
IPC: F04F1/18
CPC classification number: F04F1/18 , Y10T137/2911
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