-
公开(公告)号：US2445860A
公开(公告)日：1948-07-27
申请号：US63867446
申请日：1946-01-02
Applicant: NEWKIRK ELMER M
Inventor： NEWKIRK ELMER M
IPC: A47L3/02
CPC classification number: A47L3/02
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
