"1839 nî" pán-pún chi-kan bô-kāng--ê tē-hng

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~ BOT: Ka-thiam Wikidata P570/P106/P27/P39 chu-liāu
~ BOT: Chiàu Q1160895 ê P585 kì-lio̍k
Tē 26 chōa:
 
== Sū-kiāⁿ ==
* [[4 goe̍h 19 ji̍t]]: Chi̍t kóa Au-chiu kok-ka chhiam-tēng [[London Tiâu-iok͘ (1839 nî)|London Tiâu-iok͘]].
=== Bô ji̍t-kî ===
 
* [[pointer tiān-pò]], [[Charles Wheatstone]] ê hoat-bêng.
== Chhut-sì ==