{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Elevators, hydraulic and electric; a complete hand book ... a series of questions and answers follows. Designed for the use of engineers and operators","author_name":"Calvin F. b. 1846 Swingle","thumbnail_url":"https://www.ebooknetworking.net/books/117/159/big1171593392.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1171593392.html\">Elevators, hydraulic and electric; a complete hand book ... a series of questions and answers follows. Designed for the use of engineers and operators</a>","width":400,"height":300}