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公开(公告)号：US1853614A
公开(公告)日：1932-04-12
申请号：US30590328
申请日：1928-09-14
Applicant: GRAY PROCESSES CORP
Inventor： HERTHEL EUGENE C , PELZER HARRY L
IPC: C10G50/00
CPC classification number: C10G50/00
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公开(公告)号：US1887128A
公开(公告)日：1932-11-08
申请号：US30590228
申请日：1928-09-14
Applicant: GRAY PROCESSES CORP
Inventor： HERTHEL EUGENE C , PELZER HARRY L
IPC: C10G50/00
CPC classification number: C10G50/00
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