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公开(公告)号:US3047214A
公开(公告)日:1962-07-31
申请号:US73032658
申请日:1958-04-23
Applicant: SHARPLES CORP
Inventor: DOWNING FRANCIS P
IPC: B04B1/12
CPC classification number: B04B1/12 , B04B2013/006 , Y10S494/901
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公开(公告)号:US2823215A
公开(公告)日:1958-02-11
申请号:US61398056
申请日:1956-10-04
Applicant: SHARPLES CORP
Inventor: DOWNING FRANCIS P
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公开(公告)号:US3078287A
公开(公告)日:1963-02-19
申请号:US539360
申请日:1960-01-29
Applicant: SHARPLES CORP
Inventor: DOWNING FRANCIS P
IPC: C11B1/12
CPC classification number: C11B1/12
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4.
公开(公告)号:US3020160A
公开(公告)日:1962-02-06
申请号:US75759858
申请日:1958-08-27
Applicant: SHARPLES CORP
Inventor: DOWNING FRANCIS P , ALBERTS THOMAS W
CPC classification number: A23J1/002 , C11B1/12 , Y10S494/901
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