发明名称 Collapsible viewing instrument
摘要 A viewing instrument that has a collapsed configuration and an expanded configuration. The viewing instrument includes two lenses that are located within a housing when the viewing instrument is in its collapsed configuration and at least a portion of each of the lenses is located outside of the housing when the viewing instrument is in its expanded configuration.
申请公布号 US2004032652(A1) 申请公布日期 2004.02.19
申请号 US20020217139 申请日期 2002.08.13
申请人 HOLMES DELORES NAOMI;WOOTEN CLARENCE;SAWHNEY RAVI KUMAR 发明人 HOLMES DELORES NAOMI;WOOTEN CLARENCE;SAWHNEY RAVI KUMAR
分类号 G02B25/00;G02B27/04;(IPC1-7):G02B23/00 主分类号 G02B25/00
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