Lawrence E. Gray

ST Sandvik Rock Tools: 1 patents #17 of 31Top 55%

📍 Bristol, VA: #82 of 147 inventorsTop 60%

🗺 Virginia: #18,729 of 34,511 inventorsTop 55%

Overall (All Time): #3,794,771 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5301763	Apparatus for drilling holes in mine roofs and a roof drill bit for use therein	Kent Peay	1994-04-12