PL62397B1 - - Google Patents

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Publication number
PL62397B1
PL62397B1 PL128920A PL12892068A PL62397B1 PL 62397 B1 PL62397 B1 PL 62397B1 PL 128920 A PL128920 A PL 128920A PL 12892068 A PL12892068 A PL 12892068A PL 62397 B1 PL62397 B1 PL 62397B1
Authority
PL
Poland
Prior art keywords
flap
closing
lever
crank
vacuum
Prior art date
Application number
PL128920A
Other languages
English (en)
Polish (pl)
Inventor
Houszka Józef
Original Assignee
Politechnika Wroclawska
Filing date
Publication date
Application filed by Politechnika Wroclawska filed Critical Politechnika Wroclawska
Publication of PL62397B1 publication Critical patent/PL62397B1/pl

Links

PL128920A 1968-09-05 PL62397B1 (de)

Publications (1)

Publication Number Publication Date
PL62397B1 true PL62397B1 (de) 1971-02-27

Family

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