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16 résultats pour : electrical engineer

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Guglielmo Marconi.
UMG23A58_304

Guglielmo Marconi.

New York
UMG23A55_429

New York

Ernest Werner Siemens
UMG23A04_227

Ernest Werner Siemens

Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor
UMG23A04_210

Thomas Alva Edison (February 11, 1847 – October 18...

Thomas Alva Edison
UMG22A65_252

Thomas Alva Edison

Thomas Alva Edison
UMG22A47_204

Thomas Alva Edison

Jet Propulsion Laboratory (JPL) worker Mary Reaves mates connectors on a radioisotope thermoelectric generator (RTG) to power up the Cassini spacecraft, while quality assurance engineer Peter Sorci lo...
UMG22A40_099

Jet Propulsion Laboratory (JPL) worker Mary Reaves...

Operating the computer control panel
UMG22A39_093

Operating the computer control panel

Alexander Graham Bell.
UMG21A14_138

Alexander Graham Bell.

Ernst Werner Siemens
UMG21A10_303

Ernst Werner Siemens

New telegraph to transmit facsimiles, exact copies of handwritten documents
UMG20B25_311

New telegraph to transmit facsimiles, exact copies...

Guglielmo Marconi
UMG20B23_125

Guglielmo Marconi

Charles Proteus Steinmetz
UMG20B23_172

Charles Proteus Steinmetz

Engineers Use Analog Computers
UMG20A12_224

Engineers Use Analog Computers

Bell Lab Scientists At Work
UMG20A21_251

Bell Lab Scientists At Work

Inventor Watching His 3" TV
UMG20A13_211

Inventor Watching His 3" TV