谁们专利名称：Tennis score keeping device
发明人：Philip Boxer
申请号：US09732809
申请日：20001211史记多少篇
公开号：US20020072438A1
项目建设内容
公开日：黑人白人
20020613
疏通马桶妙招
专利内容由知识产权出版社提供
专利附图：
摘要：The two part device is received within the recess in a tennis racquet handle. The first part is fixed within the recess and has a surface imprinted with scoring indicia. The cond part is rotatably mounted on the first part and has a viewing window. The viewing window is aligned with lected scoring indicia on the first part surface as the cond part
花木成畦手自栽上一句is rotated. Detents cooperate to insure proper alignment between the window and the indicia. The cond part has a raid portion, preferably in the shape of an indicia, to facilitate gripping the exterior surface of the cond part.
申请人：BOXER PHILIP什么手机有红外线功能
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