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公开(公告)号:US3018078A
公开(公告)日:1962-01-23
申请号:US379360
申请日:1960-01-21
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
IPC: F16L5/02
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公开(公告)号:US3405958A
公开(公告)日:1968-10-15
申请号:US50448265
申请日:1965-10-24
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
IPC: B08B9/093
CPC classification number: B08B9/093
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公开(公告)号:US3514129A
公开(公告)日:1970-05-26
申请号:US3514129D
申请日:1967-11-09
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
CPC classification number: F16L37/008 , F16L37/101 , Y10T403/4637
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公开(公告)号:US3104672A
公开(公告)日:1963-09-24
申请号:US12543461
申请日:1961-07-20
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
IPC: B08B9/093
CPC classification number: B08B9/093 , Y10S239/13
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公开(公告)号:US2965308A
公开(公告)日:1960-12-20
申请号:US71575358
申请日:1958-02-17
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
IPC: F16L7/02
CPC classification number: F16L7/02
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公开(公告)号:US3167091A
公开(公告)日:1965-01-26
申请号:US21874962
申请日:1962-08-22
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
CPC classification number: B01J4/008 , A47L15/4418 , Y10T137/87595 , Y10T137/87627 , Y10T137/87643 , Y10T137/87684
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公开(公告)号:US3088611A
公开(公告)日:1963-05-07
申请号:US80181059
申请日:1959-03-25
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
IPC: B66F9/065
CPC classification number: B66F9/065
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公开(公告)号:US3031148A
公开(公告)日:1962-04-24
申请号:US80189059
申请日:1959-03-25
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
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公开(公告)号:US3001533A
公开(公告)日:1961-09-26
申请号:US70915958
申请日:1958-01-15
Applicant: HOLDREN BROTHERS INC
Inventor: HOLDREN DONALD R
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