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Pierre Henri De Portemont
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11,243. Portemont, P. H. de. May 14. Mounting and securing pulleys on shafts.-Metal roller-ends a are attached to window-blind rollers b by radial projections 3 stamped out of the cylindrical part of the drum. The sides of the projections are bevelled, and an eyelet 4 is stamped in the drum or flange to receive the cord.
GB190711243D1907-05-141907-05-14Improvements in and relating to Pulleys or Ends for Blind Rollers.
ExpiredGB190711243A
(en)