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L.11 : Joint use of tunnels by pipelines and telecommunication cables, and the standardization of underground duct plans

Recommendation L.11 (11/88)

Approved in 1988-11

Status : In force


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PDF Document PDF (acrobat)

161362 bytes 1990-03-28 E 13641 
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PDF Document PDF (acrobat)

175535 bytes 1990-03-28 S 13641 
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PDF Document PDF (acrobat)

184101 bytes 1990-03-28 F 13641 

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Updated : 2003/02/03