-
公开(公告)号：US3536957A
公开(公告)日：1970-10-27
申请号：US3536957D
申请日：1968-10-10
Applicant: SMITH CORP A O
Inventor： IVERSON ETHERIDGE M , MAYNARD JOHN T
CPC classification number: H02H3/253 , H02H7/0833 , Y10T307/839
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
