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Patents for Harry Grant Francis
Patents 1 - 7 of 7
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
1,327,815Jan. 13, 1920H.G. FrancisVeneer-press
1,333,968Mar. 16, 1920H.G. FrancisRoller scraper-bar for glue-spreading machines
1,661,174Mar. 06, 1928H.G. FrancisGlue spreader
1,664,207Mar. 27, 1928H.G. FrancisBolt head
1,762,972Jun. 10, 1930H.G. FrancisPlate glue spreader
1,846,856Feb. 23, 1932H.G. FrancisGlue spreader
1,981,499Nov. 20, 1934H.G. FrancisClamp
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