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1957-04-15
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1960-06-29
Method and machine for the manufacture of filters for tobacco smoke
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1966-03-18
Smoking tobacco composition and method for imparting flavor to tobacco smoke
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1963-12-31
Method of manufacturing tobacco smoke filters and apparatus for carrying out this method
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1960-11-04
Impregnated regenerated cellulose films and method of making them
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1962-06-30
Filter for tobacco smoke and method for its manufacture
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1958-07-09
Filter for tobacco smoke
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1954-09-16
Method and machine for making rods for tobacco smoke filters
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1966-12-15
Filter for tobacco smoke and method for its manufacture
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1963-06-28
Filters for tobacco smoke and method of producing such filters
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1960-05-03
Method and apparatus for making filter sticks for cigarettes
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1961-02-24
Method and apparatus for producing reconstituted tobacco
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1965-12-31
A method of manufacturing a filter for tobacco smoke and a filter obtained by this method
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1957-06-30
Filter for tobacco smoke and method for its manufacture
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1966-05-15
Cigarette filter and method for its manufacture
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1968-08-15
Filter for tobacco smoke and its manufacturing process
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1960-05-03
Filter for tobacco smoke and method of making it
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1963-05-17
Tobacco smoke filter and method of manufacture
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1961-06-19
New filter for tobacco smoke and method and apparatus for the manufacture of this filter
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1973-03-15
Tobacco smoke filter and process for its manufacture
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1966-07-15
Filter for tobacco smoke and method of manufacturing this filter
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1960-09-02
Method and device for cooling tobacco smoke
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1964-02-28
Tobacco smoke purification process and filter for its implementation
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1962-04-27
New filter for tobacco smoke and process for the manufacture of this filter
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1961-05-26
Tobacco smoke filter