Patent search ap:("BELL TELEPHONE LABOR INC") AND inv:"ELLWOOD WALTER B" Page 4

31.

发明授权
Jig 失效
Title translation: 夹具

公开(公告)号：US2406008A

公开(公告)日：1946-08-20

申请号：US42108441

申请日：1941-11-29

Applicant: BELL TELEPHONE LABOR INC

Inventor： ELLWOOD WALTER B , HILL HENRY E

IPC: H01H11/00

CPC classification number: H01H11/005 , Y10S29/046 , Y10S409/903 , Y10T29/49105 , Y10T29/53961

Patent Agency Ranking