About 4 Trademarks found that are filed by the attorney Richard Schwarzstein

The color(s) red, white and light brown is/are claimed as a feature of the mark.

The colors white, black, light blue and dark blue are claimed as a feature of the mark.

custom design and development of electro-mechanical components and subassemblies for others

The color(s) white, dark blue and light blue are claimed as a feature of the mark.

custom design and development of electro-mechanical components and subassemblies for others

The mark consists of capital letter "H" in blue, with a red circle around it and a small blue cross to the right, at the bottom of the mark.