Allen Engineering of Paragould Debuts New Products by Eric Monson Posted 1/27/2014 12:00 am The company is releasing two new variations of its Mechanical Super Pro riding trowels for smoothing concrete. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.