ORIGINAL PRINTED PATENT APPLICATION NUMBER 6,895 FOR AN IMPROVED SYSTEM FOR USE IN LONG DISTANCE TELEPHONY. [1910]

Name: ORIGINAL PRINTED PATENT APPLICATION NUMBER 6,895 FOR AN IMPROVED SYSTEM FOR USE IN LONG DISTANCE TELEPHONY. [1910]
Author: Albert & Gabriel Sem [inventors]. Petersen
ISBN: 978B000O72T54

Author Albert & Gabriel Sem [inventors]. Petersen

Publisher HMSO

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Book Details

Author(s)Albert & Gabriel Sem [inventors]. Petersen

PublisherHMSO

ISBN / ASINB000O72T5S

ISBN-13978B000O72T54

Sales Rank99,999,999

MarketplaceUnited States 🇺🇸