John W. Von Holdt

📍 Niles, IL: #2 of 19 inventorsTop 15%

🗺 Illinois: #133 of 3,813 inventorsTop 4%

Overall (1989): #9,428 of 140,708Top 7%

Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4881715	Safety lift lock with internal member	—	1989-11-21
4856977	Two stage mold centering system	—	1989-08-15
4808106	Flex gate	—	1989-02-28