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公开(公告)号:US1737409A
公开(公告)日:1929-11-26
申请号:US27714828
申请日:1928-05-12
Applicant: NAT PNEUMATIC CO
Inventor: CONKLIN ROSCOE D
IPC: B61D23/02
CPC classification number: B61D23/02
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公开(公告)号:US2346009A
公开(公告)日:1944-04-04
申请号:US45384042
申请日:1942-08-06
Applicant: NAT PNEUMATIC CO
Inventor: CONKLIN ROSCOE D
IPC: E05F15/20
CPC classification number: E05F15/75
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公开(公告)号:US2272732A
公开(公告)日:1942-02-10
申请号:US28799039
申请日:1939-08-02
Applicant: NAT PNEUMATIC CO
Inventor: VANDER VEER JOHN H , FORMAN PARIS R , CONKLIN ROSCOE D
CPC classification number: H04B3/56 , E05F15/63 , E05Y2900/132 , Y10T16/27
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公开(公告)号:US2130764A
公开(公告)日:1938-09-20
申请号:US16668337
申请日:1937-09-30
Applicant: NAT PNEUMATIC CO
Inventor: CONKLIN ROSCOE D
CPC classification number: H01H35/006 , E05F15/41 , E05Y2201/474 , E05Y2400/552 , E05Y2600/11 , E05Y2900/51
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公开(公告)号:US1949645A
公开(公告)日:1934-03-06
申请号:US64273432
申请日:1932-11-15
Applicant: NAT PNEUMATIC CO
Inventor: CONKLIN ROSCOE D
IPC: E05F15/04
CPC classification number: E05F15/53 , E05Y2900/51
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公开(公告)号:US2256613A
公开(公告)日:1941-09-23
申请号:US27072739
申请日:1939-04-29
Applicant: NAT PNEUMATIC CO
Inventor: FORMAN PARIS R , CONKLIN ROSCOE D
IPC: E05F15/12
CPC classification number: E05F15/611 , E05Y2900/132
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公开(公告)号:US2009081A
公开(公告)日:1935-07-23
申请号:US73376834
申请日:1934-07-05
Applicant: NAT PNEUMATIC CO
Inventor: CONKLIN ROSCOE D , JOHNSON FRANK E
IPC: E05F15/20
CPC classification number: E05F15/75
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8.Mechanism for reversing motive devices for operating doors and the like 失效
Title translation: 用于翻转操作门等的动力装置的机构公开(公告)号:US1828860A
公开(公告)日:1931-10-27
申请号:US36920529
申请日:1929-06-07
Applicant: NAT PNEUMATIC CO
Inventor: CONKLIN ROSCOE D
IPC: E05F15/02
CPC classification number: E05F15/50
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9.System for operating the exit and trap doors of railway coaches 失效
Title translation: 铁路客车出口和疏通门操作系统公开(公告)号:US1623556A
公开(公告)日:1927-04-05
申请号:US3231325
申请日:1925-05-23
Applicant: NAT PNEUMATIC CO
Inventor: HAROLD ROWNTREE , CONKLIN ROSCOE D
IPC: B61D23/02
CPC classification number: B61D23/02
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公开(公告)号:US2114334A
公开(公告)日:1938-04-19
申请号:US12397737
申请日:1937-02-04
Applicant: NAT PNEUMATIC CO
Inventor: CONKLIN ROSCOE D
IPC: E05F15/02
CPC classification number: E05F15/50
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