AU494629B2 - Clean air zone - Google Patents

Clean air zone

Info

Publication number
AU494629B2
AU494629B2 AU23871/77A AU2387177A AU494629B2 AU 494629 B2 AU494629 B2 AU 494629B2 AU 23871/77 A AU23871/77 A AU 23871/77A AU 2387177 A AU2387177 A AU 2387177A AU 494629 B2 AU494629 B2 AU 494629B2
Authority
AU
Australia
Prior art keywords
clean air
air zone
zone
clean
air
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
AU23871/77A
Other versions
AU2387177A (en
Inventor
Hugh Howorth 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.)
Howorth Air Engineering Ltd
Original Assignee
Howorth Air Engineering Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB19024/76A external-priority patent/GB1555563A/en
Application filed by Howorth Air Engineering Ltd filed Critical Howorth Air Engineering Ltd
Application granted granted Critical
Publication of AU2387177A publication Critical patent/AU2387177A/en
Publication of AU494629B2 publication Critical patent/AU494629B2/en
Expired legal-status Critical Current

Links

AU23871/77A 1976-05-08 1977-04-01 Clean air zone Expired AU494629B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB19024/76 1976-05-08
GB19024/76A GB1555563A (en) 1976-05-08 1976-05-08 Clean air zone

Publications (2)

Publication Number Publication Date
AU2387177A AU2387177A (en) 1978-07-27
AU494629B2 true AU494629B2 (en) 1978-07-27

Family

ID=

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