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John Szczewski

MC Master Lock Company: 1 patents #117 of 208Top 60%
📍 Greenfield, WI: #128 of 223 inventorsTop 60%
🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #3,839,009 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D341766 Weather/environmental padlock Bruce E. Zacher, Paul E. Meshke 1993-11-30