Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Reexamination Certificate
2006-06-06
2006-06-06
Neuder, William (Department: 3672)
Boring or penetrating the earth
Boring without earth removal
Combined with earth removal
C175S220000
Reexamination Certificate
active
07055624
ABSTRACT:
A guide rail system (1) for a power tool (2), has at least two axially extending guide rails (3, 3′), at least one guide slide (4, 4′) displaceable on the guide rails (3, 3′) having a coupling part (5a,5b) for securing the power tool (2), a base plate (6) with a rail coupling part (7a,7b) and a rail junction (8) displaceable on one of a guide rails (3) relative to the other guide rail (3′), wherein the rail junction (8) has a coupling part (5a,5b).
REFERENCES:
patent: 2023027 (1935-12-01), Mitchell
patent: 2393230 (1946-01-01), Bradshaw
patent: 3136372 (1964-06-01), Roach
patent: 2001/0052429 (2001-12-01), Frenzel et al.
patent: 2003/0221868 (2003-12-01), Martin
Abelman ,Frayne & Schwab
Hilti Aktiengesellschaft
Neuder William
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