Keyword: telephone services

Telefonie

telephone services

telephone services is used as descriptor

 
Identifier Title Date Level of description Other information
EBA 9/9 Korrespondenz 1994-1998: Schweiz 1994 – 1999 File: 1 file Standard period of protection
GFA 12/491406 Soundabsoring hood for the phone in the machine factory 1949 Item: 1 photo digitized | prolonged period of protection
GFA 12/491407 Soundabsoring hood for the phone in the machine factory 1949 Item: 1 photo digitized | prolonged period of protection
GFA 12/491408 Soundabsoring hood for the phone in the machine factory 1949 Item: 1 photo digitized | prolonged period of protection
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