Improvements relating to closure flanges for container wall openings, to methods forforming such closure flanges and to containers incorporating such closure flanges
摘要
申请公布号
GB767458(A)
申请公布日期
1957.02.06
申请号
GB19550003369
申请日期
1955.02.04
申请人
AMERICAN FLANGE & MANUFACTURING CO. INC.
发明人
DEARING CLARENCE WILLIAM;GRUCZEK HERMAN HEINRICH;STONE HAROLD ALVIN
