-
公开(公告)号:US2207335A
公开(公告)日:1940-07-09
申请号:US28163039
申请日:1939-06-28
Applicant: THOMAS
Inventor: THOMAS LOUIS R , STEWART FENTON E
IPC: A01J13/00
CPC classification number: A01J13/00
公开(公告)号:US2207335A
公开(公告)日:1940-07-09
申请号:US28163039
申请日:1939-06-28
Applicant: THOMAS
Inventor: THOMAS LOUIS R , STEWART FENTON E
IPC: A01J13/00
CPC classification number: A01J13/00