CH493A - Device to prevent smoke from flowing in - Google Patents

Device to prevent smoke from flowing in

Info

Publication number
CH493A
CH493A CH493A CH493DA CH493A CH 493 A CH493 A CH 493A CH 493 A CH493 A CH 493A CH 493D A CH493D A CH 493DA CH 493 A CH493 A CH 493A
Authority
CH
Switzerland
Prior art keywords
flowing
prevent smoke
smoke
prevent
Prior art date
Application number
CH493A
Other languages
German (de)
Inventor
Oskar Friehmelt
Original Assignee
Oskar Friehmelt
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 Oskar Friehmelt filed Critical Oskar Friehmelt
Publication of CH493A publication Critical patent/CH493A/en

Links

CH493A 1889-01-29 1889-01-29 Device to prevent smoke from flowing in CH493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH493T 1889-01-29

Publications (1)

Publication Number Publication Date
CH493A true CH493A (en) 1889-04-02

Family

ID=4178150

Family Applications (1)

Application Number Title Priority Date Filing Date
CH493A CH493A (en) 1889-01-29 1889-01-29 Device to prevent smoke from flowing in

Country Status (1)

Country Link
CH (1) CH493A (en)

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