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[Roller-skate patents] (1861)
United States. Patent Office · [Washington, D.C. : U.S. Patent Office] · leaf 546
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(No Model.) 2 Sheets— Sheet 2. W. P. GREGG. ROLLER SKATE. No. 275,482. 3 Patented Apr. 10, 1883. FIG. 5. ft* … FIG.7. FIG. 9 FIG.8 FIG. 10 /G>. Pltol'j LrthOi;ra|>W. WMh'n^iM, '£Roller skates · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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