PL42687B1 - - Google Patents

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Publication number
PL42687B1
PL42687B1 PL42687A PL4268757A PL42687B1 PL 42687 B1 PL42687 B1 PL 42687B1 PL 42687 A PL42687 A PL 42687A PL 4268757 A PL4268757 A PL 4268757A PL 42687 B1 PL42687 B1 PL 42687B1
Authority
PL
Poland
Prior art keywords
gas
air
propeller
permeable
porous
Prior art date
Application number
PL42687A
Other languages
English (en)
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL42687B1 publication Critical patent/PL42687B1/pl

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PL42687A 1957-05-23 PL42687B1 (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
PL42687B1 true PL42687B1 (enrdf_load_stackoverflow) 1959-10-15

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