PL40763B1 - - Google Patents

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Publication number
PL40763B1
PL40763B1 PL40763A PL4076356A PL40763B1 PL 40763 B1 PL40763 B1 PL 40763B1 PL 40763 A PL40763 A PL 40763A PL 4076356 A PL4076356 A PL 4076356A PL 40763 B1 PL40763 B1 PL 40763B1
Authority
PL
Poland
Prior art keywords
lamp
glass
light
bulb
layer
Prior art date
Application number
PL40763A
Other languages
English (en)
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL40763B1 publication Critical patent/PL40763B1/pl

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PL40763A 1956-01-30 PL40763B1 (ja)

Publications (1)

Publication Number Publication Date
PL40763B1 true PL40763B1 (ja) 1957-12-15

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