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Inventions in the Century - Sách nói Miễn phí
Ngôn ngữ: English
Tác giả: William Henry Doolittle,
Thể loại: Công nghệ & Kỹ thuật,
Đang phát
[1/32] INTRODUCTORY—INVENTIONS AND DISCOVERIES—THEIR DEVELOPMENT.
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Giới thiệu
The author was an Expert and Patent Solicitor, Ex-Examiner in the Patent Office and Assistant Commissioner of Patents at Washington, Writer of Inventions, etc. He put together this collection to illustrate a period of remarkable advances in technology across the board. - Summary by LynneT