STEVANUS MARIA LETSOIN yang dikenal dengan STEVEN LETSOIN dan pimpinan BLACK SWEET, lahir di ‘kampung TERI’, Pulau ‘Kimaam’ (Merauke) tahun 1954 dimana orang tuanya bertugas sebagai guru disana. Di awal tahun 70an, merantau ke Fak-Fak sampai menyelesaikan pendidikan SPG disana. Di Fak-Fak pula beliau mulai bermain musik sebagai pemain Bass. Sebenarnya beliau sudah mendapatkan tempat tugas sebagai guru di Agimuga tetapi tahun 1977 berangkat ke Merauke dan tertahan disana. Di Merauke mulai bermain di Band The Mars sebagai gitaris dan juga vocalis. Album perdana BB yang baru saja keluar saat itu, beliau yang menyanyikannya di band. Hanya setahun di Merauke, berangkat ke Jayapura dan kuliah di UNCEN lalu bergabung di band UNCEN bersama Eddy Pattipeiluhu, Robby Manengkey dan Yan Ulukyanan, juga di Band BPD Irian Jaya. Setelah Harry Letsoin & John Keff datang dan bergabung, mereka bermain di Band KODAM XVII Cenderawasih sampai berangkat di Jakarta dan dikenal denga
On January 7, 1890, Inventor William Purvis received a patent for the fountain pen.
Mr. Purvis was inspired by the inconvenience of having to carry a bottle of ink in order to write or to sign documents, thus he invented the writing pen which eliminated the need for an ink well.
His invention was ingenious, his writing implementation has an ink reservoir within it! Of his accomplishment, Purvis said, "the object of my invention is to provide a simple, durable, and inexpensive construction of a fountain pen adapted to general use and which may be carried in the pocket." The creation of the fountain pen has made office work cleaner and less expensive for businesses all over the world.
In addition to his fountain pen, Purvis, a Philadelphian, also successfully patented a number of other inventions. Between 1884 and 1897 he patented a hand stamp, an electric railway device, an electric railway switch and a magnetic car balancing device.
https://en.m.wikipedia.org/wiki/William_B._Purvis
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