Cross Bar Switching

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[1] 755A Crossbar PBX

[2] NE1B16CQB - 5XB Test Console

[3] The London Telephones areas last manual exchange goes auto....

[4] 755A Trunk/Local Lights

[5] Phil's Western Electric #3 Cross Bar Exchange

[6] Crossbar PBX found abandoned in Ohio

[7] Wikopedia Page on Crossbar Switches

[8] Ericsson ARD 636 Crossbar 30 Station PAX

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