Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With suction pump inlet communicating with bore bottom
Reexamination Certificate
2007-03-06
2007-03-06
Bagnell, David (Department: 3672)
Boring or penetrating the earth
With above-ground means for handling drilling fluid or cutting
With suction pump inlet communicating with bore bottom
C175S424000, C175S209000
Reexamination Certificate
active
10711629
ABSTRACT:
A hole digger for digging a hole in ground. The hole digger includes a handle end for manually turning the hole digger. The hole digger includes a support section extending from the handle end. The hole digger includes a digging end extending from the support section.
REFERENCES:
patent: 2802689 (1957-08-01), Batstone
patent: 3103982 (1963-09-01), Henderson
patent: 3638741 (1972-02-01), Zizak
patent: 5535836 (1996-07-01), Cagianut et al.
patent: 5826668 (1998-10-01), Kosmalski
patent: 6231270 (2001-05-01), Cacossa
Andrews David
Bagnell David
Elnitski, Jr. John J.
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