Plow.
    3.
    发明授权
    Plow. 失效

    公开(公告)号:US724854A

    公开(公告)日:1903-04-07

    申请号:US1902122118

    申请日:1902-09-04

    Applicant: HAAS EDWARD

    Inventor: HAAS EDWARD

    CPC classification number: A01B3/44

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