Search-light.
    32.
    发明授权
    Search-light. 失效
    探照灯。

    公开(公告)号:US726529A

    公开(公告)日:1903-04-28

    申请号:US1900027132

    申请日:1900-08-17

    Applicant: GEN ELECTRIC

    Inventor: HALL JOHN L

    CPC classification number: F21V21/30

Patent Agency Ranking