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公开(公告)号:US2215412A
公开(公告)日:1940-09-17
申请号:US17115237
申请日:1937-10-26
Applicant: THOMPSON ALBERT T
Inventor: THOMPSON ALBERT T
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公开(公告)号:US2187919A
公开(公告)日:1940-01-23
申请号:US17115337
申请日:1937-10-26
Applicant: THOMPSON ALBERT T
Inventor: THOMPSON ALBERT T
IPC: F17C13/06
CPC classification number: F17C13/06
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公开(公告)号:US2154876A
公开(公告)日:1939-04-18
申请号:US13419237
申请日:1937-03-31
Applicant: THOMPSON ALBERT T
Inventor: THOMPSON ALBERT T
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