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公开(公告)号:US2169455A
公开(公告)日:1939-08-15
申请号:US15160137
申请日:1937-07-02
Applicant: WAGNER SR WILLIAM L
Inventor: WAGNER SR WILLIAM L
IPC: C03B33/095
CPC classification number: C03B33/095
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公开(公告)号:US2152754A
公开(公告)日:1939-04-04
申请号:US15558337
申请日:1937-07-26
Applicant: WAGNER SR WILLIAM L
Inventor: WAGNER SR WILLIAM L
CPC classification number: C03B23/0026 , C03B29/06
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