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Title:
【考案の名称】鋼製グレーチング付側溝用コンクリート製大型蓋
Document Type and Number:
Japanese Patent JP3040820
Kind Code:
U
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Inventors:
Tanaka Seimen Co., Ltd.
Application Number:
JP1163196U
Publication Date:
September 05, 1997
Filing Date:
October 07, 1996
Export Citation:
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Assignee:
Koharu
International Classes:
(IPC1-7): E03F5/04



 
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