Matches in Library of Congress for { ?s ?p Technological innovations History 20th century.. }
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- 00028089 subject "Technological innovations History 20th century.".
- 00057726 subject "Technological innovations History 20th century.".
- 2002015244 subject "Technological innovations History 20th century.".
- 2003104203 subject "Technological innovations History 20th century.".
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- 2005051836 subject "Technological innovations History 20th century.".
- 2008003192 subject "Technological innovations History 20th century.".
- 2009020235 subject "Technological innovations History 20th century.".
- 2009029602 subject "Technological innovations History 20th century.".
- 2009029603 subject "Technological innovations History 20th century.".
- 2009392409 subject "Technological innovations History 20th century.".
- 2010416991 subject "Technological innovations History 20th century.".
- 2011906760 subject "Technological innovations History 20th century.".
- 89154286 subject "Technological innovations History 20th century.".
- 95017492%2F%2Fr96 subject "Technological innovations History 20th century.".
- 98213305 subject "Technological innovations History 20th century.".