-
公开(公告)号：US2004940A
公开(公告)日：1935-06-18
申请号：US57061331
申请日：1931-10-23
Applicant: HOWARD D COLMAN
Inventor： GREENLEE THEODORE K
IPC: F24D19/10
CPC classification number: F24D19/1084
Search Results
1
records
(took 0.019 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
