Document Type and Number:
Japanese Patent JPS5172066
Kind Code:
A
Inventors:
AKUTSU MASAFUMI
Application Number:
JP14598574A
Publication Date:
June 22, 1976
Filing Date:
December 19, 1974
Export Citation:
Assignee:
NHK SPRING CO LTD
International Classes:
E04H6/06; E04H6/00; (IPC1-7): E04H6/00
Domestic Patent References:
JPS4417936Y1 | 1969-08-04 | |||
JPS4995369A | 1974-09-10 | |||
JPS50135781A | 1975-10-28 |