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公开(公告)号:US2191469A
公开(公告)日:1940-02-27
申请号:US6449636
申请日:1936-02-18
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: B23K9/038
CPC classification number: B23K9/038
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公开(公告)号:US2055534A
公开(公告)日:1936-09-29
申请号:US70859734
申请日:1934-01-27
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: B21K1/14
CPC classification number: B21K1/14
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公开(公告)号:US2007649A
公开(公告)日:1935-07-09
申请号:US71608034
申请日:1934-03-17
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: B21C37/28
CPC classification number: B21C37/283 , Y10T29/49389 , Y10T29/4944
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公开(公告)号:US1991556A
公开(公告)日:1935-02-19
申请号:US63681832
申请日:1932-10-08
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: B21D51/24
CPC classification number: B21D51/24 , Y10S220/29
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公开(公告)号:US1955001A
公开(公告)日:1934-04-17
申请号:US67275433
申请日:1933-05-25
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: B23K9/133
CPC classification number: B23K9/1336
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公开(公告)号:US1955000A
公开(公告)日:1934-04-17
申请号:US67275333
申请日:1933-05-25
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: B23K9/133
CPC classification number: B23K9/1336
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公开(公告)号:US1807531A
公开(公告)日:1931-05-26
申请号:US38408129
申请日:1929-08-07
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: B21D19/04
CPC classification number: B21D19/046 , Y10T409/308904
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公开(公告)号:US2441416A
公开(公告)日:1948-05-11
申请号:US59699245
申请日:1945-06-01
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: H05B7/12
CPC classification number: H05B7/12
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公开(公告)号:US2419139A
公开(公告)日:1947-04-15
申请号:US57322145
申请日:1945-01-17
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: H05B7/103
CPC classification number: H05B7/103
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公开(公告)号:US2385206A
公开(公告)日:1945-09-18
申请号:US48690643
申请日:1943-05-13
Applicant: KELLOGG M W CO
Inventor: HOPKINS ROBERT K
IPC: B22D7/02
CPC classification number: B22D7/02
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