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1.发明授权
公开(公告)号：US2494848A
公开(公告)日：1950-01-17
申请号：US67851746
申请日：1946-06-21
Applicant: B B CHEM CO
Inventor： WHITELEGG RUDOLPH F
IPC: B32B27/00
CPC classification number: B32B27/00 , Y10T156/1028 , Y10T156/109 , Y10T428/23914 , Y10T428/23943 , Y10T428/23979 , Y10T428/23993
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