AT40857B - Reversible school blackboard hung on ropes. - Google Patents

Reversible school blackboard hung on ropes.

Info

Publication number
AT40857B
AT40857B AT40857DA AT40857B AT 40857 B AT40857 B AT 40857B AT 40857D A AT40857D A AT 40857DA AT 40857 B AT40857 B AT 40857B
Authority
AT
Austria
Prior art keywords
ropes
reversible
hung
school blackboard
blackboard
Prior art date
Application number
Other languages
German (de)
Inventor
Karl August Helbig
Original Assignee
Karl August Helbig
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 Karl August Helbig filed Critical Karl August Helbig
Application granted granted Critical
Publication of AT40857B publication Critical patent/AT40857B/en

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT40857D 1908-07-13 1908-07-13 Reversible school blackboard hung on ropes. AT40857B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT40857T 1908-07-13

Publications (1)

Publication Number Publication Date
AT40857B true AT40857B (en) 1910-02-10

Family

ID=3559454

Family Applications (1)

Application Number Title Priority Date Filing Date
AT40857D AT40857B (en) 1908-07-13 1908-07-13 Reversible school blackboard hung on ropes.

Country Status (1)

Country Link
AT (1) AT40857B (en)

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