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US07707779B2 Frame assembly for window with vertically sliding sash 失效
具有垂直滑动窗框的窗框组装

Frame assembly for window with vertically sliding sash
Abstract:
A frame assembly for a window including a sash that slides vertically within a master frame. The master frame is substantially of unitary, one-piece construction that can advantageously be manufactured by an injection moulding process. The sash frame can also be of unitary, one-piece construction, and can also be manufactured by injection moulding. The master frame can be provided with liner support structures along the jambs to receive jamb liners in snap-fit. The liner support structures can advantageously be integrally moulded with the master frame.
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