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Patents - vacuum packing

Law Packaging

Photocopies of patents issued by Belgium (No. 859088), Canada (No. 1086206), Switzerland (No. 620647, United Kingdom (No. 1547472) and the United States of America (No. 4229927) for the design of process and apparatus for vacuum packing. Invented by Timothy T. Day for use by J. Sainsbury Limited.

Patents - vacuum packing

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