Inventor
POWELL DAVID W
US6 patents
⚠️ This page may combine multiple inventors who share the name “POWELL DAVID W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POWELL DAVID W
3 patentsUS7665250B2Feb 23, 2010
System for construction of a compression structure with corner blocks, key blocks, and corner block supports
POWELL DAVID W26 citations89
US4872265AOct 10, 1989
Trimmer attachment
POWELL DAVID W12 citations70
US10494771B1Dec 3, 2019
Precast park refuge construction method and apparatus
POWELL DAVID W1 citations59