Title:
【考案の名称】マンホ-ル用補助梯子
Document Type and Number:
Japanese Patent JPS58181900
Kind Code:
U
More Like This:
| JPS619436 | [Title of the device] Ladder unit |
Inventors:
Nagashima Hirotaka
Application Number:
JP7963282U
Publication Date:
December 05, 1983
Filing Date:
May 31, 1982
Export Citation:
International Classes:
E06C9/12; E02D29/12; E06C9/06; (IPC1-7): E06C9/06; E02D29/12