CA672437A - Cigarette filters - Google Patents

Cigarette filters

Info

Publication number
CA672437A
CA672437A CA672437A CA672437DA CA672437A CA 672437 A CA672437 A CA 672437A CA 672437 A CA672437 A CA 672437A CA 672437D A CA672437D A CA 672437DA CA 672437 A CA672437 A CA 672437A
Authority
CA
Canada
Prior art keywords
cigarette filters
cigarette
filters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA672437A
Inventor
T. Dunlap Donald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Celanese Corp
Original Assignee
Celanese Corp of America
Publication date
Application granted granted Critical
Publication of CA672437A publication Critical patent/CA672437A/en
Expired legal-status Critical Current

Links

CA672437A Cigarette filters Expired CA672437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA672437T

Publications (1)

Publication Number Publication Date
CA672437A true CA672437A (en) 1963-10-15

Family

ID=35972795

Family Applications (1)

Application Number Title Priority Date Filing Date
CA672437A Expired CA672437A (en) Cigarette filters

Country Status (1)

Country Link
CA (1) CA672437A (en)

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