Hours Of Operations Tsr Incorporated Maryland Frederick 21702 Tsr Incorporated Hours of Operation and Location in Frederick, MD 21702 4.2 - 102 votes 92 Thomas Johnson Dr, Frederick, MD 21702 (301) 662-5229 Get Directions Tsr Incorporated Hours Category: Electronics Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore FrederickView More Apparel Sam's ClubCostcoMarshallsTJ MaxxRoss Dress for Less Sports CostcoTargetSports AuthorityNew BalanceLids Jewelry Sam's ClubCostcoMarshallsBurlington Coat FactoryDeb Shops Recommend For You A & P Food Store A Dollar Arc Basket Shop Carpet & Company Carpet & Upholstery Cleaning Carpet Cleaning & Upholstery Clearview Windows & Doors Convenience Store Costco Wholesale Corporation