Document Type and Number:
Japanese Patent JPS6239371
Kind Code:
B2
Inventors:
MIMURA TADAO
TAKAHASHI SADAO
TAKAHASHI SADAO
Application Number:
JP2558379A
Publication Date:
August 22, 1987
Filing Date:
March 07, 1979
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G01L21/32; H01J37/248
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