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ORIGINAL PRINTED PATENT APPLICATION NUMBER 17,932 FOR AN IMPROVED PROCESS AND APPARATUS FOR WIRELESS OPERATION OF SWITCHES AND OTHER APPARATUS AT A DISTANCE BY SOUND WAVES AND OTHER VIBRATIONS. (1909)

Author Count Michael, Dr Eugen Klupathy, Christian Berger (inventors). Karolyi
Publisher HMSO
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Book Details
PublisherHMSO
ISBN / ASINB000HIHKF8
ISBN-13978B000HIHKF2
Sales Rank99,999,999
MarketplaceUnited States 🇺🇸