-
公开(公告)号：US2717604A
公开(公告)日：1955-09-13
申请号：US25622751
申请日：1951-11-14
Applicant: KARL MASTALLER LEOPOLD
Inventor： KARL MASTALLER LEOPOLD
IPC: A61H9/00
CPC classification number: A61H9/0071 , A61H2201/0207 , A61H2201/0228 , A61H2201/025
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
