John F. Lagenbach

📍 Chesterfield, MO: #40 of 244 inventorsTop 20%

🗺 Missouri: #150 of 859 inventorsTop 20%

Overall (1989): #37,560 of 140,708Top 30%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4844521	Security door lock	George Langenbach	1989-07-04