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1.
公开(公告)号:US2928360A
公开(公告)日:1960-03-15
申请号:US61622856
申请日:1956-10-16
Applicant: HEINE JR EDMUND C
Inventor: HEINE JR EDMUND C
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公开(公告)号:US2961802A
公开(公告)日:1960-11-29
申请号:US64097257
申请日:1957-02-18
Applicant: MONGAN WILLIAM T , HEINE JR EDMUND C
Inventor: MONGAN WILLIAM T , HEINE JR EDMUND C
IPC: E04H15/20
CPC classification number: E04H15/20 , E04H2015/201 , Y10S135/906
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