-
公开(公告)号：US2744013A
公开(公告)日：1956-05-01
申请号：US31241852
申请日：1952-09-30
Applicant: DORLAND RODGER M , ROBERTS PAUL E
Inventor： DORLAND RODGER M , ROBERTS PAUL E
CPC classification number: D21J1/08 , Y10T428/31851 , Y10T428/31964
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
