Combination retractor and aspirator
    3.
    发明授权
    Combination retractor and aspirator 失效
    组合式延伸器和吸气器

    公开(公告)号:US3557456A

    公开(公告)日:1971-01-26

    申请号:US3557456D

    申请日:1969-06-12

    IPC分类号: A61C17/08 A61C17/04

    CPC分类号: A61C17/043

    摘要: AN ASPIRATING TUBE MADE OF A SOFT, RESILIENT, BUT NONCOLLAPSING PLASTIC MATERIAL HAVING RIDGES OR RIBS IN THE OUTER SURFACE OF THE END PORTION THEREOF TO ENABLE SAID TUBE TO BE USED AS A TISSUE AND LIP RETRACTOR AS WELL AS A PROTECTIVE DEVICE FOR THE ANATOMICAL OR ORAL CAVITY DURING THE USE OF ANATOMICAL OR DENTAL OPERATING AND SURGICAL INSTRUMENTS.

    Coin card loading machine
    6.
    发明授权
    Coin card loading machine 失效
    打卡机

    公开(公告)号:US3619978A

    公开(公告)日:1971-11-16

    申请号:US3619978D

    申请日:1970-02-16

    发明人: GRAHAM GEORGE C

    IPC分类号: B65B15/02 B65B5/10 B65B35/30

    CPC分类号: B65B15/02

    摘要: A MACHINE FOR AUTOMATICALLY LOADING COINS IN THE COIN RECEIVING RECESSES OF A COIN CARD WHEREBY THE COINS ARE FED BY GRAVITY AND THEN PRESEED INTO SAID RECESSES AS THE CARD PASSES BELOW A PLURALITY OF STACKS OF COINS AND THEREAFTER SAID COINS ARE FUTHER PRESSED INTO POSITION BY A WEIGHTED ELEMENT.