FI894054A - Hjaelpanordning till en ansiktsmask. - Google Patents

Hjaelpanordning till en ansiktsmask. Download PDF

Info

Publication number
FI894054A
FI894054A FI894054A FI894054A FI894054A FI 894054 A FI894054 A FI 894054A FI 894054 A FI894054 A FI 894054A FI 894054 A FI894054 A FI 894054A FI 894054 A FI894054 A FI 894054A
Authority
FI
Finland
Prior art keywords
space
worker
face
walls
openings
Prior art date
Application number
FI894054A
Other languages
English (en)
Other versions
FI86031B (fi
FI894054A0 (fi
FI86031C (fi
Inventor
Matti Lehtimaeki
Virve Christiansen
Original Assignee
Valtion Teknillinen
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
Application filed by Valtion Teknillinen filed Critical Valtion Teknillinen
Priority to FI894054A priority Critical patent/FI86031C/fi
Publication of FI894054A0 publication Critical patent/FI894054A0/fi
Publication of FI894054A publication Critical patent/FI894054A/fi
Publication of FI86031B publication Critical patent/FI86031B/fi
Application granted granted Critical
Publication of FI86031C publication Critical patent/FI86031C/fi

Links

FI894054A 1989-08-30 1989-08-30 Hjaelpanordning till en ansiktsmask. FI86031C (fi)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI894054A FI86031C (fi) 1989-08-30 1989-08-30 Hjaelpanordning till en ansiktsmask.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI894054 1989-08-30
FI894054A FI86031C (fi) 1989-08-30 1989-08-30 Hjaelpanordning till en ansiktsmask.

Publications (4)

Publication Number Publication Date
FI894054A0 FI894054A0 (fi) 1989-08-30
FI894054A true FI894054A (fi) 1991-03-03
FI86031B FI86031B (fi) 1992-03-31
FI86031C FI86031C (fi) 1992-07-10

Family

ID=8528910

Family Applications (1)

Application Number Title Priority Date Filing Date
FI894054A FI86031C (fi) 1989-08-30 1989-08-30 Hjaelpanordning till en ansiktsmask.

Country Status (1)

Country Link
FI (1) FI86031C (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI973847A (fi) * 1997-09-30 1999-03-31 Euromaski Oy Sovitelma suojalaitteen yhteydessä

Also Published As

Publication number Publication date
FI86031B (fi) 1992-03-31
FI894054A0 (fi) 1989-08-30
FI86031C (fi) 1992-07-10

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Legal Events

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MM Patent lapsed
MM Patent lapsed

Owner name: VALTION TEKNILLINEN TUTKIMUSKESKUS