-
公开(公告)号：US3097676A
公开(公告)日：1963-07-16
申请号：US4114360
申请日：1960-07-06
Applicant: CALK CHARLES T
Inventor： CALK CHARLES T
IPC: B27L1/00
CPC classification number: B27L1/005
Search Results
1
records
(took 0.01 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
