Industrial spectacles
    3.
    发明授权
    Industrial spectacles 失效
    工业技术

    公开(公告)号:US3605116A

    公开(公告)日:1971-09-20

    申请号:US3605116D

    申请日:1968-02-27

    Applicant: ESB INC

    CPC classification number: A61F9/029

    Abstract: SPECTACLES, SUCH AS INDUSTRIAL SPECTACLES AND SUNGLASSES, HAVING EMBEDDED IN THE NOSE PIECE A MALLEABLE INSERT TO PERMIT SLIGHT BENDING, HORIZONTALLY, WITH A PERMANENT SET OF TWO LENS SURROUNDINGS PORTIONS, EITHER TOWARD OR AWAY FROM THE FACE, SO AS TO ADJUST THE FRAME TO THE FACIAL CONTOUR OF THE WEARER. SUCH INSERT MAY ALSO BE EMBODIDIED IN EACH TEMPLE. THE NOSE PIECE INSERT WHEN TWISTED VERTICALLY ALSO PERMITS ADJUSTMENT OF THE TEMPLE EXTREMITES SO THAT THEY MAY BE BROUGHT INTO HORIZONTAL ALIGNMENT.

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