PL255471A1 - Method of making blackboards - Google Patents

Method of making blackboards

Info

Publication number
PL255471A1
PL255471A1 PL25547185A PL25547185A PL255471A1 PL 255471 A1 PL255471 A1 PL 255471A1 PL 25547185 A PL25547185 A PL 25547185A PL 25547185 A PL25547185 A PL 25547185A PL 255471 A1 PL255471 A1 PL 255471A1
Authority
PL
Poland
Prior art keywords
blackboards
making
making blackboards
Prior art date
Application number
PL25547185A
Inventor
Jerzy Bryginowicz
Jerzy Cobaj
Zdzislaw Klaman
Jozef Kosik
Edmund Richta
Adam Slazyk
Original Assignee
Pomocy Naukowych Fab
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 Pomocy Naukowych Fab filed Critical Pomocy Naukowych Fab
Priority to PL25547185A priority Critical patent/PL255471A1/en
Publication of PL255471A1 publication Critical patent/PL255471A1/en

Links

PL25547185A 1985-09-19 1985-09-19 Method of making blackboards PL255471A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL25547185A PL255471A1 (en) 1985-09-19 1985-09-19 Method of making blackboards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25547185A PL255471A1 (en) 1985-09-19 1985-09-19 Method of making blackboards

Publications (1)

Publication Number Publication Date
PL255471A1 true PL255471A1 (en) 1987-05-04

Family

ID=20028367

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25547185A PL255471A1 (en) 1985-09-19 1985-09-19 Method of making blackboards

Country Status (1)

Country Link
PL (1) PL255471A1 (en)

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