Collection search - Cathode Ray Direction Finder, various types, notes, reports, correspondence
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Record information – Brief 
Cathode Ray Direction Finder, various types, notes, reports, correspondence
Hierarchical level:FileDate:1934-1939Reference:MG30-B157, Volume number: 11Type of material:Textual materialFound in:Archives / Collections and FondsItem ID number:4958246Context of this record: -
Record information – Details Date(s):1934-1939Place of creation:CanadaLanguage of material:EnglishFinding aid no.:Source:PrivateFormer archival reference no.: -
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