Title:
【考案の名称】マンホ-ル枠引上げ機
Document Type and Number:
Japanese Patent JPS59156942
Kind Code:
U
Inventors:
Kubo Setsuo
Application Number:
JP4910783U
Publication Date:
October 22, 1984
Filing Date:
April 02, 1983
Export Citation:
International Classes:
E02D9/02; B66F3/24; B66F19/00; E02D29/12; (IPC1-7): E02D29/12; B66F3/24; E02D9/02