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Title:
【考案の名称】段差接合用塩ビ製小口径マンホ-ル
Document Type and Number:
Japanese Patent JP2530149
Kind Code:
Y2
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Inventors:
Nakai Yoshitaka
Application Number:
JP9095192U
Publication Date:
March 26, 1997
Filing Date:
December 11, 1992
Export Citation:
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Assignee:
Aronkasei Co., Ltd.
International Classes:
F16L27/08; (IPC1-7): F16L27/08
Attorney, Agent or Firm:
Yoshihiko Okabe



 
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