CH81853A - Safety and alarm device for doors - Google Patents

Safety and alarm device for doors

Info

Publication number
CH81853A
CH81853A CH81853A CH81853DA CH81853A CH 81853 A CH81853 A CH 81853A CH 81853 A CH81853 A CH 81853A CH 81853D A CH81853D A CH 81853DA CH 81853 A CH81853 A CH 81853A
Authority
CH
Switzerland
Prior art keywords
doors
safety
alarm device
alarm
Prior art date
Application number
CH81853A
Other languages
German (de)
Inventor
Alfred Moeri
Original Assignee
Alfred Moeri
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 Alfred Moeri filed Critical Alfred Moeri
Publication of CH81853A publication Critical patent/CH81853A/en

Links

CH81853A 1918-10-18 1918-10-18 Safety and alarm device for doors CH81853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH81853T 1918-10-18

Publications (1)

Publication Number Publication Date
CH81853A true CH81853A (en) 1919-12-01

Family

ID=4336464

Family Applications (1)

Application Number Title Priority Date Filing Date
CH81853A CH81853A (en) 1918-10-18 1918-10-18 Safety and alarm device for doors

Country Status (1)

Country Link
CH (1) CH81853A (en)

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