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Richard L. Bruke

SASpirac Engineering Ab: 2 patents #1 of 1Top 100%
Vintrie, SE: #1 of 2 inventorsTop 50%
Overall (1994): #22,210 of 165,921Top 15%
2 Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5368153 Transportation device having a driven shaftless spiral freely fitted in a casing and resting thereon — 1994-11-29
5337658 Conveying and compacting apparatus having a shaftless spiral in a casing with drainage openings — 1994-08-16

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