DZ

Donald W. Zurwelle

BD Black & Decker: 4 patents #3 of 55Top 6%
📍 Timonium, MD: #1 of 22 inventorsTop 5%
🗺 Maryland: #12 of 1,164 inventorsTop 2%
Overall (1989): #5,406 of 140,708Top 4%
4
Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D304287 Electric drill or similar article 1989-10-31
4875879 Cord retainer for a portable electric tool Roderick F. Bunyea 1989-10-24
D301199 Trigger switch for a reversible electric drill or similar article 1989-05-23
D300501 Router 1989-04-04