E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 1/16 (2006.01) E05D 13/00 (2006.01) E05D 15/16 (2006.01) E05F 1/00 (2006.01)
Patent
CA 2376418
Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a window sash.
Amesbury Group Inc.
Smart & Biggar
LandOfFree
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