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公开(公告)号:CA188826A
公开(公告)日:1919-02-25
申请号:CA188826D
申请日:1917-03-20
Applicant: MACDONALD JOHN RODERICK
Inventor: MACDONALD JOHN RODERICK
公开(公告)号:CA188826A
公开(公告)日:1919-02-25
申请号:CA188826D
申请日:1917-03-20
Applicant: MACDONALD JOHN RODERICK
Inventor: MACDONALD JOHN RODERICK