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公开(公告)号:US1818130A
公开(公告)日:1931-08-11
申请号:US23995327
申请日:1927-12-14
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L
IPC: C03B15/08
CPC classification number: C03B15/08
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公开(公告)号:US1753291A
公开(公告)日:1930-04-08
申请号:US26724128
申请日:1928-04-04
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L
IPC: C03B15/08
CPC classification number: C03B15/08
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公开(公告)号:US1999591A
公开(公告)日:1935-04-30
申请号:US64845532
申请日:1932-12-22
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L
IPC: C03B15/08
CPC classification number: C03B15/08
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公开(公告)号:US1909948A
公开(公告)日:1933-05-23
申请号:US61887932
申请日:1932-06-23
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L
IPC: C03B15/18
CPC classification number: C03B15/18
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公开(公告)号:US1744045A
公开(公告)日:1930-01-21
申请号:US25114628
申请日:1928-02-01
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L
CPC classification number: C03B33/0215 , C03B33/09
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公开(公告)号:US2106890A
公开(公告)日:1938-02-01
申请号:US5606435
申请日:1935-12-24
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L
IPC: C03B15/08
CPC classification number: C03B15/08
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公开(公告)号:US2104460A
公开(公告)日:1938-01-04
申请号:US12560937
申请日:1937-02-13
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L
IPC: C03B15/08
CPC classification number: C03B15/08
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公开(公告)号:US2011482A
公开(公告)日:1935-08-13
申请号:US69940033
申请日:1933-11-23
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L
IPC: C03B5/20
CPC classification number: C03B5/20
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公开(公告)号:US1620017A
公开(公告)日:1927-03-08
申请号:US11475926
申请日:1926-06-09
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L , SWEET JOHN A
IPC: C03B23/033
CPC classification number: C03B23/033
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公开(公告)号:US2519457A
公开(公告)日:1950-08-22
申请号:US54195844
申请日:1944-06-24
Applicant: PITTSBURGH PLATE GLASS CO
Inventor: HALBACH HOWARD L , CAMPBELL GEORGE D , KOUPAL WALTER G
IPC: C03B15/08
CPC classification number: C03B15/08
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