CA472878A - Filtres - Google Patents

Filtres

Info

Publication number
CA472878A
CA472878A CA472878A CA472878DA CA472878A CA 472878 A CA472878 A CA 472878A CA 472878 A CA472878 A CA 472878A CA 472878D A CA472878D A CA 472878DA CA 472878 A CA472878 A CA 472878A
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
CA472878A
Other languages
English (en)
Inventor
B. Clark Joel
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA472878A publication Critical patent/CA472878A/fr
Expired legal-status Critical Current

Links

CA472878A Filtres Expired CA472878A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA472878T

Publications (1)

Publication Number Publication Date
CA472878A true CA472878A (fr) 1951-04-17

Family

ID=35606842

Family Applications (1)

Application Number Title Priority Date Filing Date
CA472878A Expired CA472878A (fr) Filtres

Country Status (1)

Country Link
CA (1) CA472878A (fr)

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