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公开(公告)号：US1851008A
公开(公告)日：1932-03-29
申请号：US18741027
申请日：1927-04-28
Applicant: EASTERN MFG COMPANY
Inventor： HANSON HUGO H , SEAMAN STEWART E
IPC: C08B1/00
CPC classification number: C08B1/00
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公开(公告)号：US1822174A
公开(公告)日：1931-09-08
申请号：US12037226
申请日：1926-07-03
Applicant: EASTERN MFG COMPANY
Inventor： SEAMAN STEWART E
IPC: C08B1/02
CPC classification number: C08B1/02
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