发明授权
US07191562B2 Locking balance shoe and system for a pivotable window 有权
锁定平衡鞋和可枢转窗口的系统

Locking balance shoe and system for a pivotable window
摘要:
Locking balance shoes and balance systems to be incorporated in pivotable double hung windows include, in one embodiment, a pair of retractable tabs that partially extend through openings within an inverted window balance. In one embodiment of the method of installing such a system, an elongated end of the balance shoe is inserted into a window jamb and then rotated into position.
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