-
公开(公告)号：US2669987A
公开(公告)日：1954-02-23
申请号：US17808750
申请日：1950-08-07
Applicant: SIDNEY HEDEEN M
Inventor： ALBERT TONKIN
IPC: A61H23/04
CPC classification number: A61H9/0078 , A61H2201/0207 , A61H2201/0228 , A61H2201/0242 , A61H2201/025
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
