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公开(公告)号:US826459A
公开(公告)日:1906-07-17
申请号:US1903162311
申请日:1903-06-20
Applicant: WILDER JOHN K
Inventor: WILDER JOHN K
CPC classification number: B02C13/288
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公开(公告)号:US650159A
公开(公告)日:1900-05-22
申请号:US1899725655
申请日:1899-07-31
Applicant: WILDER JOHN K
Inventor: WILDER JOHN K
CPC classification number: A01K1/062
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