David E. Bigelow — 1 Patent at Construction Forms

David E. Bigelow has been granted 1 US patent while listed as an inventor at Construction Forms. All of these patents were granted in 1984. David E. Bigelow ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David E. Bigelow in Milwaukee, WI, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4437646	Discharge valve for concrete pumping apparatus	Terry D. Timmerman	1984-03-20

David E. Bigelow — 1 Patent

Issued Patents All Time

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