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CA677137A - Filters - Google Patents

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Publication number
CA677137A
CA677137A CA677137A CA677137DA CA677137A CA 677137 A CA677137 A CA 677137A CA 677137 A CA677137 A CA 677137A CA 677137D A CA677137D A CA 677137DA CA 677137 A CA677137 A CA 677137A
Authority
CA
Canada
Prior art keywords
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
CA677137A
Inventor
D. Underwood Jack
Ralph G. Higgins, Jr.
William T. Allman, Jr.
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 CA677137A publication Critical patent/CA677137A/en
Expired legal-status Critical Current

Links

CA677137A Filters Expired CA677137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA677137T

Publications (1)

Publication Number Publication Date
CA677137A true CA677137A (en) 1963-12-31

Family

ID=35978220

Family Applications (1)

Application Number Title Priority Date Filing Date
CA677137A Expired CA677137A (en) Filters

Country Status (1)

Country Link
CA (1) CA677137A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527235A (en) * 1968-05-24 1970-09-08 Matra Corp Tobacco smoke filter device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527235A (en) * 1968-05-24 1970-09-08 Matra Corp Tobacco smoke filter device

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