Inventions that could have changed the world ... but didn't!

Outlines the process of making and patenting inventions and presents innovations in such fields as transportation, appliances, child and pet care, and amusement that did not work, were too early or too late, or failed for other reasons.

שנה

2015

שפה

English

מהדורות

1

עמודים

80

ISBN

9781623540241

מקור הנתונים: Wikidata