-
公开(公告)号:US2077402A
公开(公告)日:1937-04-20
申请号:US58411831
申请日:1931-12-31
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: F23N5/20
CPC classification number: F23N5/20 , F23N2039/06
-
公开(公告)号:US2058426A
公开(公告)日:1936-10-27
申请号:US64989733
申请日:1933-01-03
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: G01K1/18
CPC classification number: G01K1/18 , Y10S236/12
-
公开(公告)号:US1996907A
公开(公告)日:1935-04-09
申请号:US59997132
申请日:1932-03-19
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: H01H37/54
CPC classification number: H01H37/54 , Y10S236/06 , Y10S236/12
-
公开(公告)号:US1969733A
公开(公告)日:1934-08-14
申请号:US59135532
申请日:1932-02-06
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: G05D23/275
CPC classification number: G05D23/275
-
公开(公告)号:US2123182A
公开(公告)日:1938-07-12
申请号:US71692734
申请日:1934-03-23
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: H02P23/00
CPC classification number: H02P23/24
-
公开(公告)号:US2039300A
公开(公告)日:1936-05-05
申请号:US59571832
申请日:1932-02-29
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: F24D19/10
CPC classification number: F24D19/1084
-
公开(公告)号:US2090624A
公开(公告)日:1937-08-24
申请号:US4779235
申请日:1935-11-01
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: F24F11/08
CPC classification number: F24F11/30 , Y10S261/34
-
公开(公告)号:US2086482A
公开(公告)日:1937-07-06
申请号:US57447431
申请日:1931-11-12
Applicant: HOWARD D COLMAN
Inventor: STEWART DUNCAN J , FORREST DRAKE GEORGE
IPC: G05D23/275
CPC classification number: G05D23/275 , G05D23/1906
-
公开(公告)号:US2085086A
公开(公告)日:1937-06-29
申请号:US74403134
申请日:1934-09-14
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: H02P1/58
CPC classification number: H02P1/58 , Y10T137/86413
-
公开(公告)号:US1846514A
公开(公告)日:1932-02-23
申请号:US37809029
申请日:1929-07-13
Applicant: HOWARD D COLMAN
Inventor: FORREST DRAKE GEORGE
IPC: E05F15/12
CPC classification number: E05F15/63 , E05Y2201/434 , E05Y2600/45 , E05Y2800/358 , E05Y2900/132 , E05Y2900/40
-
-
-
-
-
-
-
-
-