Showing 21 - 40 results of 152 for search '"WELS FRANZ"', query time: 0.84s Refine Results  

DIRIGIBLE SLEIGH

by FRANZ WELS
Year of Publication 20.10.1931
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Patent

FLYING MACHINE

by FRANZ WELS
Year of Publication 28.11.1922
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Patent

FLYING-MACHINE

by FRANZ WELS
Year of Publication 21.09.1915
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Patent

Ornithoplane

by WELS FRANZ
Year of Publication 17.06.1913
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Patent