PL36720B1 - - Google Patents

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Publication number
PL36720B1
PL36720B1 PL36720A PL3672053A PL36720B1 PL 36720 B1 PL36720 B1 PL 36720B1 PL 36720 A PL36720 A PL 36720A PL 3672053 A PL3672053 A PL 3672053A PL 36720 B1 PL36720 B1 PL 36720B1
Authority
PL
Poland
Prior art keywords
glass
transparency
thickness
spectacle lenses
gród
Prior art date
Application number
PL36720A
Other languages
English (en)
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL36720B1 publication Critical patent/PL36720B1/pl

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PL36720A 1953-04-20 PL36720B1 (es)

Publications (1)

Publication Number Publication Date
PL36720B1 true PL36720B1 (es) 1954-02-15

Family

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