Walter Hrastnik

BH Bell And Howell: 1 patents #131 of 293Top 45%

📍 Chicago, IL: #7,538 of 13,327 inventorsTop 60%

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Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4367039	Wet modular film printer	—	1983-01-04