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SimoDow Manufacturing Ltd. Patents
SimoDow Manufacturing Ltd.
Calgary, CA
No. of patents:

Patent Number Title Of Patent Date Issued
4575150 Suspension arrangement for a tilting chair March 11, 1986
A suspension arrangement for a chair of the type wherein a back and seat of the chair pivot conjointly but two different angles comprises a pair of main helical torsion springs spaced axially and supporting the back support relative to a main frame so that the back support can pivot abou

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