USD349120SExpiredUtility

Open seam friction rock stabilizer

52
Assignee: INGERSOLL RAND COPriority: Nov 27, 1991Filed: Nov 27, 1991Granted: Jul 26, 1994
Est. expiryNov 27, 2011(expired)· nominal 20-yr term from priority
Inventors:Thomas J. Landsberg
52
PatentIndex Score
8
Cited by
11
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a open seam friction rock stabilizer, as shown and described.

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