 OLD BRIDGE, NJ ACCESSWIRE May 13, 2021 Blonder Tongue Laboratories, Inc. NYSE American:BDR announced its sales and results for the first quarter ended March 31, 2021. Blonder Tongue Laboratories, Inc. net sales decreased 799,000 or 19.7 to 3,251,000 for the first quarter of 2021 from 4,050,000 for the comparable period in 2020. 