{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"History of the grinding machine;: A historical study in tools and precision production","author_name":"Robert S Woodbury","thumbnail_url":"https://www.ebooknetworking.net/books/B00/07D/bigB0007DOWDG.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0007DOWDG.html\">History of the grinding machine;: A historical study in tools and precision production</a>","width":400,"height":300}