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公开(公告)号:US3347967A
公开(公告)日:1967-10-17
申请号:US26748763
申请日:1963-03-25
Applicant: WALKER MFG CO
Inventor: HOPKINS JOHN D , WHITTINGHAM DAVID J , BULTMAN FREDERICK H , KRAUSE PAUL K
IPC: B01D27/00 , B01D29/00 , B01D39/16 , B29C35/02 , B29C43/00 , B29C43/08 , B29C43/14 , B29C43/34 , B29C70/00 , B29C70/14 , D04H13/00 , D06P7/00 , D21J3/00
CPC classification number: B29C70/14 , B01D27/005 , B29C35/0222 , B29C43/08 , B29C43/14 , B29C43/34 , B29C70/28 , B29C2043/3272 , B29C2043/3689 , B29K2061/04 , B29K2105/25 , B29K2201/00 , B29K2503/00 , B29L2023/00 , B29L2031/14
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公开(公告)号:US3353457A
公开(公告)日:1967-11-21
申请号:US52233465
申请日:1965-10-22
Applicant: WALKER MFG CO
Inventor: WHITTINGHAM DAVID J , HOPKINS JOHN D , COWLES CRAIG H
CPC classification number: B31F5/027 , B01D29/111 , B01D29/21 , B01D2201/0407 , B01D2201/0415 , B29C53/40 , B29C65/56 , B29C66/1122 , B29C66/43 , B29C66/4322 , B29C66/49 , B29C66/8322 , B31D5/0082 , Y10S55/05
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公开(公告)号:US3431759A
公开(公告)日:1969-03-11
申请号:US3431759D
申请日:1966-02-02
Applicant: WALKER MFG CO
Inventor: KIDERA EDWARD H , KURTH WARREN , WHITTINGHAM DAVID J
CPC classification number: B21D7/06
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