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公开(公告)号:US877037A
公开(公告)日:1908-01-21
申请号:US1907366051
申请日:1907-04-02
Applicant: BERNARD LUDWIG
Inventor: BERNARD LUDWIG
CPC classification number: B05C3/09
公开(公告)号:US877037A
公开(公告)日:1908-01-21
申请号:US1907366051
申请日:1907-04-02
Applicant: BERNARD LUDWIG
Inventor: BERNARD LUDWIG
CPC classification number: B05C3/09