Method of preserving packaged materials
United States Patent 2719660
US Patent References:
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/0639674.html
- - 0639674

/0697641.html
- - 0697641

/0962036.html
- - 0962036

Seal for solid formaldehyde products
- - 1371724


Inventors:
Ellis, John M.
Publication Date:
10/04/1955
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Assignee:
Ellis, John M.
Primary Class:
Other Classes:
426/124, 141/4, 206/.500, 141/11, 53/449, 53/474, 206/213.100, 141/70, 53/432, 53/468
International Classes:
A61L2/20
US Patent References:
1406380Process of and means for putting up powdered milk and other food products in a sterile atmosphere
2027429Packing process
2054492Method of and apparatus for gassing and sealing products in cans
2159835Package and process for making the same
2170531Apparatus for mixing a liquid with a gas
2221520Apparatus for manufacturing carbon dioxide