Title:
METHOD OF FORMING CONNECTING END OF DOUBLE SPIRAL METAL PIPE
Document Type and Number:
Japanese Patent JPS5274563
Kind Code:
A
Inventors:
WAKAKURI YUUZOU
SHIBATA MASAHIRO
SHIBATA MASAHIRO
Application Number:
JP14688875A
Publication Date:
June 22, 1977
Filing Date:
December 11, 1975
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD
International Classes:
F16L59/16; B21D19/00; B21D39/04; F16L39/00; F16L59/18; (IPC1-7): B21D19/00; B21D39/04; F16L39/00
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