AU57940A - Improvements in filters - Google Patents

Improvements in filters

Info

Publication number
AU57940A
AU57940A AU579/40A AU57940A AU57940A AU 57940 A AU57940 A AU 57940A AU 579/40 A AU579/40 A AU 579/40A AU 57940 A AU57940 A AU 57940A AU 57940 A AU57940 A AU 57940A
Authority
AU
Australia
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
AU579/40A
Other versions
AU112503B2 (en
Inventor
Paterson. Oscar Carl Merrison William
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of AU57940A publication Critical patent/AU57940A/en
Publication of AU112503B2 publication Critical patent/AU112503B2/en
Expired legal-status Critical Current

Links

AU579/40A 1940-02-13 Improvements in filters Expired AU112503B2 (en)

Publications (2)

Publication Number Publication Date
AU57940A true AU57940A (en) 1941-02-20
AU112503B2 AU112503B2 (en) 1941-02-20

Family

ID=

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