-
公开(公告)号：US2207194A
公开(公告)日：1940-07-09
申请号：US16267037
申请日：1937-09-07
Applicant: CHARLES D ALTICK , LLOYD D SMILEY
Inventor： GRUENDLER WILLIAM P
IPC: B02C13/26
CPC classification number: B02C13/26
Search Results
1
records
(took 0.017 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
