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Title:
【考案の名称】プレキャストコンクリートブロックにプレストレスを与えて一 体化させた大型暗渠
Document Type and Number:
Japanese Patent JP3052736
Kind Code:
U
Inventors:
Takaaki Endo
Application Number:
JP1204497U
Publication Date:
October 09, 1998
Filing Date:
December 18, 1997
Export Citation:
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Assignee:
Takaaki Endo
International Classes:
(IPC1-7): E04G21/12; E03F3/04
Attorney, Agent or Firm:
Oda Haruka



 
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