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公开(公告)号:CA176989A
公开(公告)日:1917-05-15
申请号:CA176989D
申请日:1916-10-05
Applicant: DUFFY PATRICK EDWARD
Inventor: DUFFY PATRICK EDWARD
公开(公告)号:CA176989A
公开(公告)日:1917-05-15
申请号:CA176989D
申请日:1916-10-05
Applicant: DUFFY PATRICK EDWARD
Inventor: DUFFY PATRICK EDWARD