VOLATILE MATERIAL EXPIRATION INDICATING SYSTEM

An indicator system with a dispenser providing controlled release of a volatile material contained within a dispenser, which indicates the exhaustion of the volatile material. The dispenser includes a blister that contains a vapor permeable membrane that collapses on a bottom wall due to internal va...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: MARTENS EDWARD J. III
Format: Patent
Sprache:eng
Schlagworte:
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