Improvements in or relating to course indicating instruments for use on aircraft equipped with radio receivers for co-operation with so-called wireless lighthouses
摘要
申请公布号
GB435072(A)
申请公布日期
1935.09.13
申请号
GB19340027519
申请日期
1934.09.25
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
