USD341670SExpiredUtility

Precast sludge tank roof panel with removable grate

Assignee: ENVIROLAND INCPriority: Aug 9, 1991Filed: Aug 9, 1991Granted: Nov 23, 1993

Est. expiryAug 9, 2011(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for precast sludge tank roof panel with removable grate, as shown.

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