Title:
Protection of niobium
United States Patent 3057048


Inventors:
Hirakis, Emanuel C.
Application Number:
US77218058A
Publication Date:
10/09/1962
Filing Date:
11/06/1958
Assignee:
HORIZONS INC
Primary Class:
Other Classes:
75/252, 205/109, 205/148, 205/193, 205/206, 205/271, 428/661, 428/935, 428/939
International Classes:
C25D5/50; C25D15/02
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