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23 résultats pour : field telephone

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Campaign phone produced in Estonia, 1935
UMG24A00_411

Campaign phone produced in Estonia, 1935

First World War
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First World War

German soldiers in a dugout during World War I. One soldier is using a field telephone ca. 1914-1915
UMG22A28_130

German soldiers in a dugout during World War I. On...

German field telephone
UMG20A63_408

German field telephone

German field phone
UMG20A63_407

German field phone

Radio News: Radio Rescues Miners 1924
UMG20A37_367

Radio News: Radio Rescues Miners 1924

Short Wave and Television: Televised Horse Racing
UMG20A37_445

Short Wave and Television: Televised Horse Racing

Short Wave Craft: How to Build the 804 Power Oscillator 1936
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Short Wave Craft: How to Build the 804 Power Oscil...

Short Wave and Television: Radio and Firefighting 1937
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Short Wave and Television: Radio and Firefighting ...

Short Wave and Television: Radio and Airplanes
UMG20A37_446

Short Wave and Television: Radio and Airplanes

Short Wave Craft: Make This New Police Thrill Box
UMG20A37_452

Short Wave Craft: Make This New Police Thrill Box

Radio News: Christmas
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Radio News: Christmas

Short Wave and Television: New Electronic Gun Projects Large Television Images 1937
UMG20A37_369

Short Wave and Television: New Electronic Gun Proj...

Short Wave and Television: Radio Controlled Ice Sailing
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Short Wave and Television: Radio Controlled Ice Sa...

Short Wave and Television: Short Waves Aid Movie Directors 1937
UMG20A37_443

Short Wave and Television: Short Waves Aid Movie D...

Radio-Craft: Submarine 1932
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Radio-Craft: Submarine 1932

Short Wave Craft: Build This New Briefcase Short Wave Receiver 1932
UMG20A37_451

Short Wave Craft: Build This New Briefcase Short W...

Short Wave Craft: This Converter 1932
UMG20A37_347

Short Wave Craft: This Converter 1932

Short Wave Craft: At Last! A 2 R.F. Stage Pentode Receiver That Works!
UMG20A37_448

Short Wave Craft: At Last! A 2 R.F. Stage Pentode ...

Short Wave Craft: Short Wave Radio Bomb Locates Mineral Deposits
UMG20A37_449

Short Wave Craft: Short Wave Radio Bomb Locates Mi...

Short Wave Craft: How to Make the New All-Wave Receiver
UMG20A37_450

Short Wave Craft: How to Make the New All-Wave Rec...

Short Wave Craft: How to Build a Simple Phone Transmitter 1931
UMG20A37_345

Short Wave Craft: How to Build a Simple Phone Tran...

Bell Lab Scientists At Work
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Bell Lab Scientists At Work