David G. Powell

États‑Unis d’Amérique

 
Quantité totale PI 1
Rang # Quantité totale PI 1 266 032
Note d'activité PI 0/5.0    0
Rang # Activité PI 1 665 710

Brevets

Marques

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0 0
0 0
0
 
Dernier brevet 2019 - Glideway crowning plate and meth...
Premier brevet 2009 - Sharpening apparatus for plane i...

Derniers inventions, produits et services

2018 Invention Glideway crowning plate and method thereof for creating a crown on a cutting edge of a cutting bl...
2009 Invention Sharpening apparatus for plane iron crowning. A sharpening apparatus having a slightly convexly o...