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公开(公告)号:US1834095A
公开(公告)日:1931-12-01
申请号:US2603325
申请日:1925-04-27
Applicant: HOLT FRASER GEORGE
Inventor: HOLT FRASER GEORGE
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公开(公告)号:US1499724A
公开(公告)日:1924-07-01
申请号:US51058521
申请日:1921-10-26
Applicant: HOLT FRASER GEORGE
Inventor: HOLT FRASER GEORGE
IPC: B07B4/02
CPC classification number: B07B4/025
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公开(公告)号:US1499720A
公开(公告)日:1924-07-01
申请号:US30741719
申请日:1919-06-28
Applicant: HOLT FRASER GEORGE
Inventor: HOLT FRASER GEORGE
IPC: B07B4/02
CPC classification number: B07B4/025
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公开(公告)号:US1499516A
公开(公告)日:1924-07-01
申请号:US23159918
申请日:1918-04-30
Applicant: HOLT FRASER GEORGE
Inventor: HOLT FRASER GEORGE
IPC: B02C15/02
CPC classification number: B02C15/02
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公开(公告)号:US1499515A
公开(公告)日:1924-07-01
申请号:US18153817
申请日:1917-07-19
Applicant: HOLT FRASER GEORGE
Inventor: HOLT FRASER GEORGE
IPC: B07B4/04
CPC classification number: B07B4/04
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公开(公告)号:US1451153A
公开(公告)日:1923-04-10
申请号:US15617517
申请日:1917-03-20
Applicant: HOLT FRASER GEORGE
Inventor: HOLT FRASER GEORGE
IPC: B02C15/06
CPC classification number: B02C15/06
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公开(公告)号:US1385675A
公开(公告)日:1921-07-26
申请号:US25027918
申请日:1918-08-17
Applicant: HOLT FRASER GEORGE
Inventor: HOLT FRASER GEORGE
IPC: B02C23/00
CPC classification number: B02C23/00
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公开(公告)号:US1378407A
公开(公告)日:1921-05-17
申请号:US2422115
申请日:1915-04-27
Applicant: HOLT FRASER GEORGE
Inventor: HOLT FRASER GEORGE
IPC: F26B11/04
CPC classification number: F26B11/0413
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