-
公开(公告)号：US2771000A
公开(公告)日：1956-11-20
申请号：US43080954
申请日：1954-05-19
Applicant: CREELMAN GEORGE D
Inventor： CREELMAN GEORGE D
IPC: G01J1/12
CPC classification number: G01J1/124
Search Results
1
records
(took 0.02 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
