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AU114875B2 - Improvements in or relating to filters - Google Patents
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AU114875B2 - Improvements in or relating to filters - Google Patents

Improvements in or relating to filters

Info

Publication number
AU114875B2
AU114875B2 AU2922/41A AU292241A AU114875B2 AU 114875 B2 AU114875 B2 AU 114875B2 AU 2922/41 A AU2922/41 A AU 2922/41A AU 292241 A AU292241 A AU 292241A AU 114875 B2 AU114875 B2 AU 114875B2
Authority
AU
Australia
Prior art keywords
filters
relating
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
AU2922/41A
Other versions
AU292241A (en
Inventor
Heather Frederick
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.)
Vokes Ltd
Original Assignee
Vokes Ltd
Filing date
Publication date
Application filed by Vokes Ltd filed Critical Vokes Ltd
Application granted granted Critical
Publication of AU114875B2 publication Critical patent/AU114875B2/en
Publication of AU292241A publication Critical patent/AU292241A/en
Expired legal-status Critical Current

Links

AU2922/41A 1941-09-15 Improvements in or relating to filters Expired AU114875B2 (en)

Publications (2)

Publication Number Publication Date
AU114875B2 true AU114875B2 (en) 1942-03-26
AU292241A AU292241A (en) 1942-03-26

Family

ID=

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