PL208941A1 - Tablica szkolna - Google Patents

Tablica szkolna

Info

Publication number
PL208941A1
PL208941A1 PL20894178A PL20894178A PL208941A1 PL 208941 A1 PL208941 A1 PL 208941A1 PL 20894178 A PL20894178 A PL 20894178A PL 20894178 A PL20894178 A PL 20894178A PL 208941 A1 PL208941 A1 PL 208941A1
Authority
PL
Poland
Prior art keywords
blackboard
Prior art date
Application number
PL20894178A
Other languages
English (en)
Other versions
PL108975B2 (en
Inventor
Benedykt Wyszecki
Original Assignee
Stocznia Im Komuny Paryskiej
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 Stocznia Im Komuny Paryskiej filed Critical Stocznia Im Komuny Paryskiej
Priority to PL20894178A priority Critical patent/PL108975B2/xx
Publication of PL208941A1 publication Critical patent/PL208941A1/pl
Publication of PL108975B2 publication Critical patent/PL108975B2/xx

Links

PL20894178A 1978-08-09 1978-08-09 Blackboard PL108975B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20894178A PL108975B2 (en) 1978-08-09 1978-08-09 Blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL20894178A PL108975B2 (en) 1978-08-09 1978-08-09 Blackboard

Publications (2)

Publication Number Publication Date
PL208941A1 true PL208941A1 (pl) 1979-09-24
PL108975B2 PL108975B2 (en) 1980-05-31

Family

ID=19990990

Family Applications (1)

Application Number Title Priority Date Filing Date
PL20894178A PL108975B2 (en) 1978-08-09 1978-08-09 Blackboard

Country Status (1)

Country Link
PL (1) PL108975B2 (pl)

Also Published As

Publication number Publication date
PL108975B2 (en) 1980-05-31

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