{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Propellers approved for use on airplanes of types in use by the American expeditionary forces","author_name":"United States. Army. American Expeditionary Forces. Air Service.","thumbnail_url":"https://www.ebooknetworking.net/books/B00/41T/bigB0041T4U16.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0041T4U16.html\">Propellers approved for use on airplanes of types in use by the American expeditionary forces</a>","width":400,"height":300}