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公开(公告)号:US875682A
公开(公告)日:1908-01-07
申请号:US1907401266
申请日:1907-11-08
Applicant: AUMEN WILLIAM J
Inventor: AUMEN WILLIAM J
CPC classification number: A01D61/002
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公开(公告)号:US878178A
公开(公告)日:1908-02-04
申请号:US1907401267
申请日:1907-11-08
Applicant: AUMEN WILLIAM J
Inventor: AUMEN WILLIAM J
CPC classification number: E05F11/32
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