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Adjustable brace for window sash

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Apparatus for mounting and stabilizing a tiltable window sash

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Double-hung window

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Double-hung window pivot

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Latch and corner support for pivotal window sash

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Latch for pivotal sash window

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Locking tilt window sash and lock therefor

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Method and apparatus for securing a sash within a frame

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Parallel balance system

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Retaining catch for tip-out sash

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Sash window

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Vertically slidable window unit

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Window apparatus

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Window assembly having a window latch construction

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Window construction

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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Window construction

Movable or removable closures – Mounted for optional movements – Pivoted closure within framework of double hung sash
Patent

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