{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"ORIGINAL PATENT APPLICATION NUMBER 839,195 FOR IMPROVEMENTS RELATING TO THE HARDENING OF METALLIC OBJECTS BY AN ELECTRICAL INDUCTION-HEATING PROCESS. (WESTMINSTER, LONDON).","author_name":"Reginald Arthur. (Vickers-Armstrongs Aircraft Ltd). Firman","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003X36XZM.html\">ORIGINAL PATENT APPLICATION NUMBER 839,195 FOR IMPROVEMENTS RELATING TO THE HARDENING OF METALLIC OBJECTS BY AN ELECTRICAL INDUCTION-HEATING PROCESS. (WESTMINSTER, LONDON).</a>","width":400,"height":300}