Title:
【考案の名称】横断排水溝
Document Type and Number:
Japanese Patent JPS58153284
Kind Code:
U
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Inventors:
Masayoshi Obata
Application Number:
JP4902982U
Publication Date:
October 13, 1983
Filing Date:
April 05, 1982
Export Citation:
International Classes:
E03F5/04; E03F5/06; (IPC1-7): E03F5/04; E03F5/06