Means for installing concrete well casings
United States Patent 3095041
US Patent References:
/0762384.html
- - 0762384
/0842595.html
- - 0842595
Noiseless dumb waiter system
- - 1978273
Method of forming piles
- - 2003393
Method and apparatus for building subaqueous foundations
- - 2082773
/0762384.html
- - 0762384
/0842595.html
- - 0842595
Noiseless dumb waiter system
- - 1978273
Method of forming piles
- - 2003393
Method and apparatus for building subaqueous foundations
- - 2082773
Inventors:
Rasmussen, Ross H.
Publication Date:
06/25/1963
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Assignee:
Rasmussen, Ross H.
Primary Class:
Other Classes:
166/380, 166/242.900
International Classes:
E21B33/10; E21B43/10; E21B43/02
US Patent References:
| 2757743 | Concrete well screen |
Foreign References:
| DE817724C |