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公开(公告)号:CA191368A
公开(公告)日:1919-07-08
申请号:CA191368D
申请日:1918-08-23
Applicant: HALE MAXWELL MATTHEW
Inventor: HALE MAXWELL MATTHEW
公开(公告)号:CA191368A
公开(公告)日:1919-07-08
申请号:CA191368D
申请日:1918-08-23
Applicant: HALE MAXWELL MATTHEW
Inventor: HALE MAXWELL MATTHEW