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1964-12-31
Tow and tobacco smoke filters and method for their production
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1964-12-31
Method and apparatus for producing tobacco smoke filters
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1958-06-10
Method and apparatus for the manufacture of tobacco smoke filters composed of cellulose acetate
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1959-02-10
Filters for tobacco smoke comprising cellulose esters and ethers
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1959-06-18
Tow and tobacco smoke filters and method for their production
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1959-12-22
Method of and apparatus for producing filters for tobacco smoke
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1958-06-10
Tobacco smoke filter elements and method for the preparation thereof
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1959-01-20
Tobacco smoke filters and process of making same
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1957-07-23
Filter cartridge and method of making the same
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1961-08-29
Method and apparatus for the manufacture of filters composed of cellulose acetate
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1959-06-18
Tow and tobacco smoke filters and method for their production
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1962-11-20
Tobacco smoke filter and method of making same
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1965-03-04
Tobacco smoke filters and method of making thesame
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1957-07-02
Filter or strainer thimble and method of producing same
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1965-03-04
Tobacco smoke filters and method of making thesame
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1961-09-19
Tow and tobacco smoke filters and method for their production
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1962-10-30
Tow and tobacco smoke filters and method for their production
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1962-10-16
Cigarette filter and method of its manufacture
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1963-03-28
Process for manufacturing tobacco smoke filter elements and filter elements produced thereby
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1963-05-02
Method of producing rigid tobacco smoke filters
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1962-09-25
Method and apparatus for forming tobacco smoke filters
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1960-08-30
Tobacco smoke filter elements and method for the preparation thereof
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1957-04-30
Filter cartridge unit and method of making the same
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1964-01-09
Tobacco smoke filters andthe methods of making same
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1959-09-01
Tobacco smoke filter