A system used in tile double-hung and tilt single-hung window units that allows the sash or sashes to be raised and lowered easily.
A block and tackle system used in the jamb liner of Double Hung or Single Hung units.
Spring loaded single/double hung vent support system.
A system used in tilt double-hung or tilt single-hung units that makes it easy to open and close your windows.
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the accumulated surplus of income over expenditure which can be used to finance expenditure. Amounts in excess of that required for day-to-day cash management and to finance working capital can be invested.
the total accumulations in a member's accounts.
The darks and lights, verticals and horizontals, etc., that make up the design of a layout.