USD313561SExpiredUtility

Automatic chalkline

10
Assignee: VAN SLYKE GREGGPriority: Jun 29, 1987Filed: Jun 29, 1987Granted: Jan 8, 1991
Est. expiryJun 29, 2007(expired)· nominal 20-yr term from priority
Inventors:Gregg Van Slyke
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PatentIndex Score
1
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an automatic chalkline, as shown and described.

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