-
公开(公告)号：US1518233A
公开(公告)日：1924-12-09
申请号：US58925422
申请日：1922-09-19
Applicant: CHARLES B MCKENNA
Inventor： BERNARD TRAGER
IPC: F16K15/20
CPC classification number: F16K15/20 , Y10T137/3709 , Y10T137/374
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
