ATE83847T1 - Kreisfoermige lueftungskanalverbindung. - Google Patents

Kreisfoermige lueftungskanalverbindung.

Info

Publication number
ATE83847T1
ATE83847T1 AT89305863T AT89305863T ATE83847T1 AT E83847 T1 ATE83847 T1 AT E83847T1 AT 89305863 T AT89305863 T AT 89305863T AT 89305863 T AT89305863 T AT 89305863T AT E83847 T1 ATE83847 T1 AT E83847T1
Authority
AT
Austria
Prior art keywords
ventilation duct
duct connection
circular ventilation
circular
connection
Prior art date
Application number
AT89305863T
Other languages
English (en)
Inventor
Peter J Arnoldt
Original Assignee
Ductmate Ind 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 US07/205,305 external-priority patent/US4881762A/en
Priority claimed from US07/218,807 external-priority patent/US4867490A/en
Application filed by Ductmate Ind Inc filed Critical Ductmate Ind Inc
Application granted granted Critical
Publication of ATE83847T1 publication Critical patent/ATE83847T1/de

Links

AT89305863T 1988-06-10 1989-06-09 Kreisfoermige lueftungskanalverbindung. ATE83847T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/205,305 US4881762A (en) 1988-06-10 1988-06-10 Duct connector for a circular duct
US07/218,807 US4867490A (en) 1988-06-10 1988-07-13 Circular duct connector
EP89305863A EP0346143B1 (de) 1988-06-10 1989-06-09 Kreisförmige Lüftungskanalverbindung

Publications (1)

Publication Number Publication Date
ATE83847T1 true ATE83847T1 (de) 1993-01-15

Family

ID=27232717

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89305863T ATE83847T1 (de) 1988-06-10 1989-06-09 Kreisfoermige lueftungskanalverbindung.

Country Status (1)

Country Link
AT (1) ATE83847T1 (de)

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee