USD282073SExpiredUtility

Rotating head for drilling

87
Assignee: ARKOMA MACHINE SHOP INCPriority: Feb 23, 1983Filed: Feb 23, 1983Granted: Jan 7, 1986
Est. expiryFeb 23, 2003(expired)· nominal 20-yr term from priority
Inventors:Robert M. BeardenW. A. Haynes
87
PatentIndex Score
40
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a rotating head for drilling, as shown.

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