(marketscreener.com) NEW YORK, April 12, 2019 /PRNewswire/ -- WeissLaw LLP is investigating possible breaches of fiduciary duty and other violations of law by the Board of Directors of Sierra Monitor Corporation ("SRMC" or the "Company") (OTC: SRMC) in connection with the proposed acquisition of the Company by MSA Safety Inc. Under the terms of...http://www.marketscreener.com/news/WeissLaw-LLP-Investigates-Sierra-Monitor-Corporation--28399313/?utm_medium=RSS&utm_content=20190412