{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Drilling practice and jig design; a treatise covering comprehensively drilling and tapping operations, and the design of drill jigs and fixtures for interchangeable manufacture","author_name":"Erik Oberg","thumbnail_url":"https://www.ebooknetworking.net/books/123/610/big1236108469.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1236108469.html\">Drilling practice and jig design; a treatise covering comprehensively drilling and tapping operations, and the design of drill jigs and fixtures for interchangeable manufacture</a>","width":400,"height":300}