Ventilation grill

Details Ventilation grill Ventilation grill

1999-11-23

2001-02-06

Lichtenstein, Lisa (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Design Patent

active

D0437405

CLAIM:
The ornamental design for a ventilation grill, as shown and described.

REFERENCES:
patent: D. 358205 (1995-05-01), Ruhland
patent: 805247 (1905-11-01), Thompson

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