-
公开(公告)号:US2613915A
公开(公告)日:1952-10-14
申请号:US13536449
申请日:1949-12-28
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
IPC: E21B19/00
CPC classification number: E21B19/00 , Y10T29/4987 , Y10T29/53657
-
公开(公告)号:US2596828A
公开(公告)日:1952-05-13
申请号:US9874049
申请日:1949-06-13
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
IPC: E21B19/14
CPC classification number: E21B19/14
-
公开(公告)号:US2570080A
公开(公告)日:1951-10-02
申请号:US2450348
申请日:1948-05-01
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
IPC: E21B19/10
CPC classification number: E21B19/10
-
公开(公告)号:US2566999A
公开(公告)日:1951-09-04
申请号:US8443749
申请日:1949-03-30
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
IPC: E21B19/16
CPC classification number: E21B19/164
-
公开(公告)号:US2537607A
公开(公告)日:1951-01-09
申请号:US69094646
申请日:1946-08-16
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
IPC: E21B19/14
CPC classification number: E21B19/14
-
公开(公告)号:US2493556A
公开(公告)日:1950-01-03
申请号:US79289247
申请日:1947-12-20
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
CPC classification number: F16L5/08 , E21B19/10 , Y10T24/3978 , Y10T403/4958
-
公开(公告)号:US2676075A
公开(公告)日:1954-04-20
申请号:US19212750
申请日:1950-10-25
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
CPC classification number: F04B53/143 , F16J1/12
-
公开(公告)号:US2628725A
公开(公告)日:1953-02-17
申请号:US25478251
申请日:1951-11-03
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
IPC: E21B19/14
CPC classification number: E21B19/14
-
公开(公告)号:US2554276A
公开(公告)日:1951-05-22
申请号:US4057148
申请日:1948-07-24
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
IPC: E21B33/06
CPC classification number: E21B33/06 , E21B33/062 , Y10T403/52
-
公开(公告)号:US2496360A
公开(公告)日:1950-02-07
申请号:US72771247
申请日:1947-02-10
Applicant: STANDARD OIL DEV CO
Inventor: STONE ALBERT L
IPC: E21B19/06
CPC classification number: E21B19/06
-
-
-
-
-
-
-
-
-