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1.Measuring and conveying device for concrete and other material. 失效
Title translation: 混凝土和其他材料的测量和输送装置。公开(公告)号:US1268553A
公开(公告)日:1918-06-04
申请号:US3081415
申请日:1915-05-27
Applicant: EIRICH MASCHF GUSTAV
Inventor: EIRICH LUDWIG , EIRICH JOSEPH
CPC classification number: B65G2201/04