Patent search ap:("HELDING HERBERT W") AND inv:"HELDING HERBERT W" Page 1

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发明授权
Color analyzing and synthesizing device 失效
Title translation: 颜色分析与合成装置

公开(公告)号：US2641853A

公开(公告)日：1953-06-16

申请号：US10519149

申请日：1949-07-16

Applicant: HELDING HERBERT W

Inventor： HELDING HERBERT W

IPC: B41F33/00 , G01J3/52

CPC classification number: G01J3/528 , B41F33/00

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