Sand-anchoring device
United States Patent 2643843
US Patent References:
/0598003.html
- - 0598003
/0829578.html
- - 0829578
/0818061.html
- - 0818061
/0888917.html
- - 0888917
/0897787.html
- - 0897787
/0598003.html
- - 0598003
/0829578.html
- - 0829578
/0818061.html
- - 0818061
/0888917.html
- - 0888917
/0897787.html
- - 0897787
Inventors:
David, Brown
Publication Date:
06/30/1953
View Patent Images:
Export Citation:
Assignee:
David, Brown
Primary Class:
Other Classes:
52/165, 52/157
International Classes:
E04H12/22
US Patent References: