اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Kleinlein, Walter J. (Walter John), 1876-
Title: Rules and Practice for Adjusting Watches
Language: English
LoC Class: TS: Technology: Manufactures
Subject: Clocks and watches
Release Date: Dec 19, 2011
Copyright Status: Public domain in the USA.
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