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Old Telephone Room

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    • Prototypes, Field Trials, Engineering Samples, Limited Editions
      Prototypes: Innovation in progress. Field Trials: Real-world experimentation. Engineering Samples: Precision and expertise on display. Limited Editions: Rare and exceptional craftsmanship.
    • Business Telephones
    • Clear Telephones
    • Northern Electric – Special Interest Contempra Phone’s – Northern Telecom
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      Click on photos for more information.
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      Transitory materials, Ephemera, Literature, Brochures, Documentation
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      Lighted Telephone Display Signs.
    • FOR SALE
      Telephones and telephone items for sale. Contact Doug: oldtelephoneroom@oldtelephoneroom.ca Click on photos for more information.
  • Bell Canada
    • The Bell Telephone Company of Canada Badge Registry
      • The Bell Telephone Company of Canada Personal Employee Badge Collection
    • Bell Telephone Building Plaques
      • Vintage Bronze Bell Telephone Doorknobs
    • Bell Telephone Public Telephone Lighted Globes
    • Bell Telephone Porcelain Sign Collection
      • Porcelain Directional Arrow Public Telephone Sign
    • 1939 – 1949 Canadian Bell System Flag
    • 1947 to 1965 Bell Telephone Company of Canada Calendar.
    • Bell Telephone Replacement Calendar Cards
    • 1965 to 1972 Bell Canada Calendar
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Old Telephone Room

The Old Telephone Room

Enclosure Design Patents

In Northern Telecom & BNR Patents

Various Enclosure Design Patents

01 November 5th 1979 Electrical Test Set Housing Patent.pdf

02 December 3rd 1981 Electrical Test Set Housing Patent.pdf

03 March 26th 1982 Electrical Test Set Housing Patent.pdf

04 April 20th 1982 Electrical Test Set Housing Patent.pdf

05 September 2nd 1993 Electronic Module Patent.pdf

06 January 20th 1994 Electronic Module Patent.pdf

07 August 11th 1998 Power Supply & Battery Housing.pdf

08 November 26th 1998 Buried Fiber Terminal.pdf

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Telephone Bell Chime Enclosure Patent

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Northern Telecom Vista 250-350 Documents

Contact Me

This is a personal collection.

All my pictures are copyrighted.

All I ask is if you want to use any of my pictures, please ask first.

Send me a message or join us on our Facebook Group.

oldtelephoneroom@oldtelephoneroom.ca
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Northern Telecom Vista 250-350 Documents

Enclosure Design Patents

Telephone Bell Chime Enclosure Patent

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1980's Handsets and Bases Patents

NT - BNR Alpha Series Telephone Patents

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