Cross Bar Switching

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

[2] Western Electric Crossbar switch

[3] 755A Crossbar PBX

[4] NE1B16CQB - 5XB Test Console

[5] 755A Trunk/Local Lights

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

[7] Crossbar PBX found abandoned in Ohio

[8] Wikopedia Page on Crossbar Switches

[9] Ericsson ARD 636 Crossbar 30 Station PAX

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