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David L. Keem

EC Excello Co.: 1 patents #92 of 216Top 45%
📍 Royal Oak, MI: #837 of 1,428 inventorsTop 60%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #4,094,553 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4282798 Control valve unit for hydraulic linear actuator Roland J. Barlow 1981-08-11