Title:
【発明の名称】開口部への転落防止部材付き蓋受け枠
Document Type and Number:
Japanese Patent JP2975004
Kind Code:
B2
Inventors:
TSUKANO KOJI
HASHIMOTO TETSUSHI
HASHIMOTO TETSUSHI
Application Number:
JP13616498A
Publication Date:
November 10, 1999
Filing Date:
April 30, 1998
Export Citation:
Assignee:
NAGASHIMA IMONO KK
International Classes:
E02D29/14; E06C9/12; (IPC1-7): E02D29/14; E06C9/12
Domestic Patent References:
| JP8218407A | ||||
| JP6231466Y2 |
Attorney, Agent or Firm:
Izawa