-
公开(公告)号：US2943636A
公开(公告)日：1960-07-05
申请号：US70308857
申请日：1957-12-16
Applicant: PHILLIPS PETROLEUM CO
Inventor： REED EDWIN E , LA RUE HAROLD E
IPC: E03B9/04
CPC classification number: E03B9/04 , Y10T137/1804 , Y10T137/3421 , Y10T137/3476 , Y10T137/7727 , Y10T137/7754 , Y10T137/87949
Search Results
1
records
(took 0.01 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
