Title:
【考案の名称】螺子および螺子締付用工具
Document Type and Number:
Japanese Patent JPH04133012
Kind Code:
U
Inventors:
Masagami Yamagami
Application Number:
JP7202691U
Publication Date:
December 10, 1992
Filing Date:
May 31, 1991
Export Citation:
International Classes:
B25B13/54; F16B23/00; (IPC1-7): F16B23/00; B25B13/54
Domestic Patent References:
| JPS5015897B1 | 1975-06-09 |