PL41537B1 - - Google Patents

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Publication number
PL41537B1
PL41537B1 PL41537A PL4153756A PL41537B1 PL 41537 B1 PL41537 B1 PL 41537B1 PL 41537 A PL41537 A PL 41537A PL 4153756 A PL4153756 A PL 4153756A PL 41537 B1 PL41537 B1 PL 41537B1
Authority
PL
Poland
Prior art keywords
teeth
sheet
disc
projector
screen
Prior art date
Application number
PL41537A
Other languages
English (en)
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL41537B1 publication Critical patent/PL41537B1/pl

Links

PL41537A 1956-05-28 PL41537B1 (it)

Publications (1)

Publication Number Publication Date
PL41537B1 true PL41537B1 (it) 1958-08-15

Family

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