USD329081SExpiredUtility

Mobile electrostatic air filter for use in welding projects

Assignee: AB PH NEDERMAN & COPriority: Jul 16, 1990Filed: Oct 15, 1990Granted: Sep 1, 1992

Est. expiryJul 16, 2010(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a mobile electrostatic air filter, as shown and described.

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