{"product_id":"2940013294165","title":"Mine Communications","description":"The Technology Transfer Seminar on Mine Communications held on March 21-22, 1973, at the Pittsburgh Mining and Safety Research Center, Bruceton, Pennsylvania, presented information about recently developed equipment, instruments, and techniques for use in mine communications systems. All of the basic ideas presented in the seminar are operational in the Bureau of Mines safety research mine in Bruceton, Pennsylvania.","brand":"http:\/\/realfastbook.com","offers":[{"title":"Default Title","offer_id":47167733727472,"sku":"2940013294165","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013294165_p0.jpg?v=1763579341","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013294165","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}