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Title:
METHOD OF WATERPROOFING TUNNEL
Document Type and Number:
Japanese Patent JPS5616800
Kind Code:
A
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Inventors:
OKADA KATSUYA
KAWAGUCHI TAKAO
HOSHINO TAKAHIRO
TOYONAGA KEISHI
Application Number:
JP9235979A
Publication Date:
February 18, 1981
Filing Date:
July 20, 1979
Export Citation:
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Assignee:
JAPAN NATIONAL RAILWAY
TOYO BUSSAN KK
International Classes:
E21D11/38; E21F16/02; (IPC1-7): E21D11/38; E21F16/02
Domestic Patent References:
JPS50122032A1975-09-25
JP51125030B



 
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