Document Type and Number:
Japanese Patent JPH02118022
Kind Code:
U
Application Number:
JP2558889U
Publication Date:
September 21, 1990
Filing Date:
March 08, 1989
Export Citation:
International Classes:
E04F11/02; (IPC1-7): E04F11/12
Domestic Patent References:
| JP62080932B | ||||
| JP61164385B |
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