Title:
真空バルブ式負荷時タップ切換装置用切換開閉器
Document Type and Number:
Japanese Patent JP4364681
Kind Code:
B2
Inventors:
Hiroshi Oshima
Application Number:
JP2004070705A
Publication Date:
November 18, 2009
Filing Date:
March 12, 2004
Export Citation:
Assignee:
Daihen Co., Ltd.
International Classes:
H01F29/04
Domestic Patent References:
JP57194509A | ||||
JP5082365A | ||||
JP5166643A |
Attorney, Agent or Firm:
Hidetoshi Matsumoto