-
公开(公告)号：US2603811A
公开(公告)日：1952-07-22
申请号：US9811549
申请日：1949-06-09
Applicant: GALLAGHER DAVID M
Inventor： GALLAGHER DAVID M
IPC: A47L1/09
CPC classification number: A47L1/09
Search Results
1
records
(took 0.021 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
