-
公开(公告)号：US1355065A
公开(公告)日：1920-10-05
申请号：US39948420
申请日：1920-07-28
Applicant: EDWARD SIMPSON ALBERT
Inventor： EDWARD SIMPSON ALBERT
CPC classification number: B23B51/08 , B23B51/02 , B23B2260/072 , B23B2260/132 , Y10T408/905 , Y10T408/906 , Y10T408/9097
Search Results
1
records
(took 0.01 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
