Title:
DEVICE FOR GROOVING INSIDE SURFACE OF PIPE
Document Type and Number:
Japanese Patent JPS5485491
Kind Code:
A
Inventors:
YAMAMOTO HIDEO
Application Number:
JP15485677A
Publication Date:
July 07, 1979
Filing Date:
December 21, 1977
Export Citation:
Assignee:
TIGERS POLYMER
International Classes:
B23B29/034; B23B29/12; (IPC1-7): B23B29/12