Title:
【考案の名称】道路橋床版
Document Type and Number:
Japanese Patent JPH04112911
Kind Code:
U
Inventors:
Sugiyama Isao
Application Number:
JP689991U
Publication Date:
October 01, 1992
Filing Date:
January 23, 1991
Export Citation:
International Classes:
E01D19/12; (IPC1-7): E01D19/12
Domestic Patent References:
| JPS63176506A | 1988-07-20 | |||
| JPS6016634A | 1985-01-28 |