Machines not elsewhere specified – Agricultural or construction machinery – Drilling – mining – or soil treatment
Design Patent
2001-04-19
2003-01-14
Hyder, Philip S. (Department: 2912)
Machines not elsewhere specified
Agricultural or construction machinery
Drilling, mining, or soil treatment
CD15S140000
Design Patent
active
D0468753
CLAIM:
The ornamental design for a mine bolt driver, as shown and described.
REFERENCES:
patent: 4907660 (1990-03-01), Staggs et al.
patent: 5259703 (1993-11-01), Gillespie
patent: 5741092 (1998-04-01), Castle et al.
patent: D420013 (2000-02-01), Warren et al.
Amster Rothstein and Ebenstein
Hyder Philip S.
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