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公开(公告)号:US731698A
公开(公告)日:1903-06-23
申请号:US1902111472
申请日:1902-06-13
Applicant: LITTLE JOHN E , ROGERS CHARLES E
Inventor: LITTLE JOHN E , ROGERS CHARLES E
CPC classification number: A01D89/00
公开(公告)号:US731698A
公开(公告)日:1903-06-23
申请号:US1902111472
申请日:1902-06-13
Applicant: LITTLE JOHN E , ROGERS CHARLES E
Inventor: LITTLE JOHN E , ROGERS CHARLES E
CPC classification number: A01D89/00