{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"ORIGINAL PATENT APPLICATION NUMBER 581,327 FOR IMPROVEMENTS IN VARIABLE PITCH AIRSCREW CONTROL MECHANISM. (HERTFORDSHIRE).","author_name":"Kenneth Bryan Gillmore, Ernest Baker Dove and Gordon Kenneth Luker Gourlay. The De Havilland Aircraft Company Limited.","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0040LCCEC.html\">ORIGINAL PATENT APPLICATION NUMBER 581,327 FOR IMPROVEMENTS IN VARIABLE PITCH AIRSCREW CONTROL MECHANISM. (HERTFORDSHIRE).</a>","width":400,"height":300}