Receptacles – Closures – With closure opening arrangements for means
Patent
1975-01-30
1976-02-03
Hall, George T.
Receptacles
Closures
With closure opening arrangements for means
220265, 220359, 40 22, B65D 4102, B65D 4100
Patent
active
039359603
ABSTRACT:
An easy opening, hermetically sealed container with a preformed aperture is covered by a tape closure having on its outer surface an indicator layer which changes color when flexed, thereby indicating whether the closure has been handled or tampered with.
REFERENCES:
patent: 3292828 (1966-12-01), Stuart
patent: 3516852 (1970-06-01), Janssen et al.
Hall George T.
Minnesota Mining and Manufacturing Company
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