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Title:
SIGNAL
Document Type and Number:
Japanese Patent JPS538909
Kind Code:
A
Abstract:

PURPOSE: To lengthen life of a lamp by lowering voltage given to the lamp of a signal in the neighttime.


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WO/1986/002985SIGNAL LIGHT UNIT HAVING HEAT DISSIPATING FUNCTION
WO/2016/114595PILLAR STRUCTURE CAPABLE OF BEING RAISED AND LOWERED, AND RAILROAD SIGNAL LIGHT STRUCTURE EMPLOYING SAME
JPH06349307SIGNAL
Inventors:
KAWASAKI MASAO
Application Number:
JP8234376A
Publication Date:
January 26, 1978
Filing Date:
July 09, 1976
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
B61L5/18; G08B5/36; G08G1/07; G08G1/095; H05B37/02; (IPC1-7): B61L5/18; G08G1/07; H05B37/02



 
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