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公开(公告)号:US3217653A
公开(公告)日:1965-11-16
申请号:US9448261
申请日:1961-03-09
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
IPC: F16K31/365
CPC classification number: F16K31/365
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公开(公告)号:US2937660A
公开(公告)日:1960-05-24
申请号:US67361557
申请日:1957-07-23
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
CPC classification number: F16K31/34 , F16T1/24 , Y10T137/3077 , Y10T137/8085
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公开(公告)号:US3217883A
公开(公告)日:1965-11-16
申请号:US3887860
申请日:1960-06-27
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
CPC classification number: G05D11/006 , C02F5/00 , C02F2301/043 , Y10T137/0352 , Y10T137/0363 , Y10T137/2514
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公开(公告)号:US3190446A
公开(公告)日:1965-06-22
申请号:US6573160
申请日:1960-10-28
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
IPC: C02F1/42
CPC classification number: C02F1/42 , Y10T137/86638
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公开(公告)号:US2912997A
公开(公告)日:1959-11-17
申请号:US43520754
申请日:1954-06-08
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
IPC: F16K31/365 , G05D7/01
CPC classification number: G05D7/0193 , F16K31/365 , Y10T137/7723 , Y10T137/7768
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公开(公告)号:US2888032A
公开(公告)日:1959-05-26
申请号:US31697352
申请日:1952-10-27
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
IPC: G05D7/01
CPC classification number: G05D7/0106 , Y10T137/7759
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公开(公告)号:US2749080A
公开(公告)日:1956-06-05
申请号:US34978953
申请日:1953-04-20
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
IPC: F16K47/02 , F16L55/045
CPC classification number: F16K47/02 , F16L55/045 , Y10T137/7782
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公开(公告)号:US3136333A
公开(公告)日:1964-06-09
申请号:US11690360
申请日:1960-04-25
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
IPC: F16K31/385
CPC classification number: F16K31/385 , Y10T137/7371 , Y10T137/7764 , Y10T137/7769
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公开(公告)号:US2931233A
公开(公告)日:1960-04-05
申请号:US45937254
申请日:1954-09-30
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
CPC classification number: F16K31/10 , Y10T74/18936
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10.Automatic pilot control means for, and method of, operating a water softener system 失效
Title translation: 自动先导控制装置和操作水软化器系统的方法公开(公告)号:US3278424A
公开(公告)日:1966-10-11
申请号:US42904865
申请日:1965-01-29
Applicant: DONALD G GRISWOLD
Inventor: GRISWOLD DAVID E
IPC: B01J49/00
CPC classification number: B01J49/85 , Y10T137/86638
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