Provision of radio-direction-finding equipment on board ship may eliminate serious delays due to fog or may be means of saving lives in case of wreck.
Radio direction finding as aid to navigation
Shipping
1922
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1928
|Engineering Index Backfile | 1932
|Engineering Index Backfile | 1926
Radio direction-finding apparatus
Engineering Index Backfile | 1919
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