PL44170B1 - - Google Patents

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Publication number
PL44170B1
PL44170B1 PL44170A PL4417060A PL44170B1 PL 44170 B1 PL44170 B1 PL 44170B1 PL 44170 A PL44170 A PL 44170A PL 4417060 A PL4417060 A PL 4417060A PL 44170 B1 PL44170 B1 PL 44170B1
Authority
PL
Poland
Prior art keywords
contact
metal
spring
head
volume
Prior art date
Application number
PL44170A
Other languages
English (en)
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL44170B1 publication Critical patent/PL44170B1/pl

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PL44170A 1960-06-11 PL44170B1 (it)

Publications (1)

Publication Number Publication Date
PL44170B1 true PL44170B1 (it) 1960-12-15

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