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公开(公告)号:US2113284A
公开(公告)日:1938-04-05
申请号:US71061034
申请日:1934-02-10
Applicant: CELOTEX COMPANY
Inventor: SWENSON GEORGE E
IPC: E04B1/62
CPC classification number: E04B1/62
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公开(公告)号:US1976684A
公开(公告)日:1934-10-09
申请号:US49498330
申请日:1930-11-11
Applicant: CELOTEX COMPANY
Inventor: MUNROE TREADWAY B , SWENSON GEORGE E
IPC: E04C2/24
CPC classification number: E04C2/243 , Y10T428/31652
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