Chalk line reel
作者： Thomas M. Chervenak , Joseph A. Sorensen , Anthony B. Fuller , Toby J. Beckmann
DOI:
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摘要: A chalk line reel includes an opening in the housing that permits access to a powdered storage area. movable door is mounted on housing, and closed position which obstructs opening. first element releasably couples clip door, second housing. The elements are positioned such resists movement of away from when coupled elements.
lens.org 参考文章(12)
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