Title:
【考案の名称】コンクリート用砕砂製造に用いる媒体石の製造装置
Document Type and Number:
Japanese Patent JPH0639798
Kind Code:
Y2
Inventors:
Okawara
Application Number:
JP9143091U
Publication Date:
October 19, 1994
Filing Date:
October 11, 1991
Export Citation:
Assignee:
Nakaya Business Co., Ltd.
International Classes:
B02C17/04; B02C17/18; B02C17/22; B24B31/02; (IPC1-7): B02C17/04; B02C17/18; B02C17/22; B24B31/02
Domestic Patent References:
| JP2222736A |
Attorney, Agent or Firm:
Mitsuhiko Watanabe