USD253161SExpiredUtility

Roller chock

Assignee: LINDSAY JOHNPriority: Feb 21, 1978Filed: Feb 21, 1978Granted: Oct 16, 1979

Est. expiryFeb 21, 1998(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

The ornamental design for a roller chock, substantially as shown and described.

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