发明名称 Base marker for baseball
摘要 A flat plate has an opening in the central portion thereof for receiving a plug which is dimensioned to removably fit within the opening. Fasteners such as screw threads, snap fittings, or the like are provided on the plug and in the opening for removably holding the plug in the opening. Two spikes or pegs of unequal length are removably fastened to the plug and project downwardly therefrom for securing the plate to the ground. The bottom of the plate has recessed portions with a pair of clips being mounted in one of the recessed portions for storing the spikes in a safe, convenient location when the marker is not in use. In one embodiment of the invention, two plugs and two openings are used, one for each of the two spikes.
申请公布号 US3971558(A) 申请公布日期 1976.07.27
申请号 US19730377493 申请日期 1973.07.09
申请人 GARDETTO, ALFRED D. 发明人 GARDETTO, ALFRED D.
分类号 A63C19/04;(IPC1-7):A63B71/00 主分类号 A63C19/04
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