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"Vostok 1" and Yuri Gagarin
Gabon
100 years of the Carl Zeiss Jena Foundation, two-coordinate measuring device.
Germany
"Vostok 1" and Yuri Gagarin
Gabon
100 years of the Carl Zeiss Jena Foundation, interference microscope.
Germany
VOSTOK space mission 3-4
Gabon
VOSTOK space mission 3-4
Gabon