Title:
【発明の名称】管用スクレーパ
Document Type and Number:
Japanese Patent JP2839331
Kind Code:
B2
Inventors:
SHIRAHAMA YOSHIHIKO
Application Number:
JP12541090A
Publication Date:
December 16, 1998
Filing Date:
May 17, 1990
Export Citation:
Assignee:
RETSUKISU KOGYO KK
International Classes:
B23C1/20; B23B5/16; B23B31/40; B23C3/02; (IPC1-7): B23C3/02; B23B5/16; B23C1/20
Domestic Patent References:
| JP4842486A |
Attorney, Agent or Firm:
Aoki Akira (3 outside)