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公开(公告)号:US1775735A
公开(公告)日:1930-09-16
申请号:US19208127
申请日:1927-05-17
Applicant: METROPOLITAN PAVING BRICK COMP
Inventor: HENRY REKER CHARLES
CPC classification number: B28B3/205 , B28B3/26 , B28B3/2663 , B28B3/2681 , Y10S100/909
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2.Method and apparatus for forming lugs on clay columns and the like 失效
Title translation: 用于在粘土柱等上形成凸耳的方法和装置公开(公告)号:US1914981A
公开(公告)日:1933-06-20
申请号:US60095732
申请日:1932-03-24
Applicant: METROPOLITAN PAVING BRICK COMP
Inventor: HENRY REKER CHARLES
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