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Class Information
Number: 5/222
Name: Beds > Bedsteads > Having bottom > Fabricated elastic flats > Tighteners > Screw > Extensible rods or trusses
Description: Devices comprising threaded connecting rods or trusses interposed between fabric carrying rails and adapted by rotating the rod or by screw extending it (as by a turnbuckle) to separate the carrying rails.










Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
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