发明名称 Apparatus and method for counting the number of shaves for which a razor blade is used
摘要 A shaving implement is provided with a plurality of frangible tabs that can be broken off, one at a time, incident to each use of a razor blade for shaving. The user is able to keep track of the extent to which each blade is used, and to discard the blade after an appropriate number of uses.
申请公布号 US4268958(A) 申请公布日期 1981.05.26
申请号 US19790090281 申请日期 1979.11.01
申请人 HILBERT, RAY 发明人 HILBERT, RAY
分类号 B26B21/40;B26B21/52;(IPC1-7):B26B21/00 主分类号 B26B21/40
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