AMENDED PATENT APPLICATION NUMBER 558,781 FOR IMPROVEMENTS IN OR RELATING TO AUTOMATIC TELEGRAPH EXCHANGE SYSTEMS (LONDON).

Name: AMENDED PATENT APPLICATION NUMBER 558,781 FOR IMPROVEMENTS IN OR RELATING TO AUTOMATIC TELEGRAPH EXCHANGE SYSTEMS (LONDON).
Author: Standard Telephone and Cables Limited.
ISBN: 978B0017Y7XP9

Author Standard Telephone and Cables Limited.

Publisher HMSO

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Book Details

Author(s)Standard Telephone and Cables Limited.

PublisherHMSO

ISBN / ASINB0017Y7XPS

ISBN-13978B0017Y7XP9

Sales Rank99,999,999

MarketplaceUnited States 🇺🇸