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公开(公告)号:FR485034A
公开(公告)日:1917-12-04
申请号:FR485034D
申请日:1917-04-06
Applicant: WALTER JAMES ELLIS
Inventor: ELLIS WALTER JAMES
IPC: B23P15/40
公开(公告)号:FR485034A
公开(公告)日:1917-12-04
申请号:FR485034D
申请日:1917-04-06
Applicant: WALTER JAMES ELLIS
Inventor: ELLIS WALTER JAMES
IPC: B23P15/40