Title:
【発明の名称】電磁誘導型スピーカ
Document Type and Number:
Japanese Patent JPH07112317
Kind Code:
B2
Inventors:
Hiroyuki Watanabe
Application Number:
JP2269591A
Publication Date:
November 29, 1995
Filing Date:
January 24, 1991
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04R9/02; H04R11/02; H04R13/00; H04R23/00; (IPC1-7): H04R23/00; H04R11/02; H04R13/00
Domestic Patent References:
| JP50109714A | ||||
| JP5151928A |
Attorney, Agent or Firm:
Akira Koike (2 outside)
Previous Patent: Tunnel excavator and tunnel excavation method
Next Patent: THROW-AWAY TYPE CUTTING TOOL AND TOOL BODY
Next Patent: THROW-AWAY TYPE CUTTING TOOL AND TOOL BODY