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公开(公告)号:US2062650A
公开(公告)日:1936-12-01
申请号:US307235
申请日:1935-01-23
Applicant: WEST END CHEMICAL COMPANY
Inventor: HELLMERS HENRY D
IPC: C01B35/12
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公开(公告)号:US1733537A
公开(公告)日:1929-10-29
申请号:US22892427
申请日:1927-10-26
Applicant: WEST END CHEMICAL COMPANY
Inventor: HELLMERS HENRY D
IPC: C01B35/10
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公开(公告)号:US2640761A
公开(公告)日:1953-06-02
申请号:US12939349
申请日:1949-11-25
Applicant: WEST END CHEMICAL COMPANY
Inventor: WISEMAN JAMES V
CPC classification number: C01D5/18 , B01D1/14 , B01D1/16 , B01D1/22 , B01D9/0031 , B01D9/0036 , B01D9/0059 , Y10S159/25
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公开(公告)号:US2531182A
公开(公告)日:1950-11-21
申请号:US76249947
申请日:1947-07-21
Applicant: WEST END CHEMICAL COMPANY
Inventor: JAMES WISEMAN
IPC: C01B35/10
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公开(公告)号:US2528481A
公开(公告)日:1950-10-31
申请号:US74648
申请日:1948-01-06
Applicant: WEST END CHEMICAL COMPANY
Inventor: WISEMAN JAMES V , BLACKMUN LYNN A , HELLMERS HENRY D
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7.Process for separating calcined colemanite from clay and other impurities 失效
Title translation: 用于将煅烧的科氏石英与粘土和其他杂质分离的方法公开(公告)号:US1556110A
公开(公告)日:1925-10-06
申请号:US63113923
申请日:1923-04-10
Applicant: WEST END CHEMICAL COMPANY
Inventor: HELLMERS HENRY D
IPC: B07B4/02
CPC classification number: B07B4/025
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公开(公告)号:US1468389A
公开(公告)日:1923-09-18
申请号:US49886821
申请日:1921-09-06
Applicant: WEST END CHEMICAL COMPANY
Inventor: MORSE HARRY W
IPC: C01D3/06
CPC classification number: C01D3/06
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公开(公告)号:US2504097A
公开(公告)日:1950-04-11
申请号:US4690448
申请日:1948-08-30
Applicant: WEST END CHEMICAL COMPANY
Inventor: WISEMAN JAMES V , BLACKMUN LYNN A , HELLMERS HENRY D
IPC: C01D5/18
CPC classification number: C01D5/18
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公开(公告)号:US1756122A
公开(公告)日:1930-04-29
申请号:US6468625
申请日:1925-10-24
Applicant: WEST END CHEMICAL COMPANY
Inventor: HELLMERS HENRY D
IPC: C01B35/10
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