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BE373940A
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BE436417A
(c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html )
CH197731A
(fr )
1938-05-15
Installation de téléphonie.
BE491463A
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BE486142A
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BE341573A
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CH120111A
(fr )
1927-08-16
Installation téléphonique.
BE482797A
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BE369234A
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BE411026A
(c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html )
CH98443A
(fr )
1923-05-01
Installation téléphonique comprenant un bureau central semi-automatique.
BE475418A
(c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html )
CH197444A
(fr )
1938-04-30
Installation de téléphonie à longues distances.
BE409407A
(c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html )
BE482060A
(c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html )
CH102431A
(fr )
1923-12-01
Installation téléphonique permettant des communications entre des bureaux équipés les uns de commutateurs à action mécanique, les autres de commutateurs à mouvement périodique.
BE361469A
(c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html )
BE432817A
(c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html )