AU494154B2 - Restriction indicating wingnut for air cleaners - Google Patents

Restriction indicating wingnut for air cleaners

Info

Publication number
AU494154B2
AU494154B2 AU14786/76A AU1478676A AU494154B2 AU 494154 B2 AU494154 B2 AU 494154B2 AU 14786/76 A AU14786/76 A AU 14786/76A AU 1478676 A AU1478676 A AU 1478676A AU 494154 B2 AU494154 B2 AU 494154B2
Authority
AU
Australia
Prior art keywords
wingnut
air cleaners
restriction indicating
restriction
indicating
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
AU14786/76A
Other versions
AU1478676A (en
Inventor
Bruce M. Sullivan And Davids. Paulson Erland D. Anderson
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.)
Donaldson Co Inc
Original Assignee
Donaldson Co Inc
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 US05/588,291 external-priority patent/US4020783A/en
Application granted granted Critical
Publication of AU494154B2 publication Critical patent/AU494154B2/en
Publication of AU1478676A publication Critical patent/AU1478676A/en
Application filed by Donaldson Co Inc filed Critical Donaldson Co Inc
Expired legal-status Critical Current

Links

AU14786/76A 1975-06-19 1978-06-10 Restriction indicating wingnut for air cleaners Expired AU494154B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
USUS588291 1975-06-19
US05/588,291 US4020783A (en) 1975-06-19 1975-06-19 Air cleaner with restriction indicator

Publications (2)

Publication Number Publication Date
AU494154B2 true AU494154B2 (en) 1977-12-15
AU1478676A AU1478676A (en) 1977-12-15

Family

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