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1939 Press Photo This is spool developed by Westinghouse research engineers to
protect transformers against their own internal electrical failures
Photo is dated 1939.
Photo measures 8 x 10.25 inches.
Photo is dated 1939.
Photo measures 8 x 10.25 inches.
$19.99
1939 Press Photo This is spool developed by Westinghouse research engineers to—
$19.99
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
protect transformers against their own internal electrical failures
Photo is dated 1939.
Photo measures 8 x 10.25 inches.
Photo is dated 1939.
Photo measures 8 x 10.25 inches.
