-
公开(公告)号：US2726683A
公开(公告)日：1955-12-13
申请号：US24437851
申请日：1951-08-30
Applicant: STANDARD OIL CO
Inventor： STEINBACH ARTHUR J
IPC: F16L55/105
CPC classification number: F16L55/105 , F16L2201/30 , Y10T137/8158
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
