Babbitt's patent soft metal lined boxes for axles, gudgeons, etc. : patented July 17, 1839 : patent extended for seven years from July 17, 1853 : patent, petition, affidavits, etc. : results of suits, opinion of counsel, etc.
Автор: Isaac Babbitt, 92 стр., издатель: "Книга по Требованию", ISBN: 978-5-8838-6326-3



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