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- Folkmann, Albert
Country Era 1867-1922
Symbol cartouche, dot ., frame, oval
Shape cartouche, frame, oval
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- Follot, Paul
Country City Paris
Era 1877-1941
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- Fon-Leib, Itzko
Country Era 1867-1922
Symbol cartouche, dot ., frame, rectangle, v clipped
Shape cartouche, frame, rectangle, v clipped
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- Fonsèque et Olive
Country City Paris
Symbol cartouche, diamond, frame, lozenge, rhombus
Shape cartouche, diamond, frame, lozenge, rhombus
Era e.1885
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- Fontani, Jr. A.Chr
Country City Amsterdam
Symbol cartouche, frame, square
Shape cartouche, frame, square
Era early 20th century
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- Fontneau & Cook Co. Inc.
Country City Attleboro MA
Symbol fleur de lis
Era c.1915
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- Ford & Perry Co. Inc.
Country City Providence RI
Era c.1915, c.1922
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- Forest Craft Guild
Country City Grand Rapids MI
Era (1879-)
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- Forever Yours Ring Co. Inc.
Country City New York NY
Era c.1950
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- Forman Co., A.M.
Country City New York NY
Era c.1934
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- Forsinger Co. Inc., J.W.
Country City Chicago IL
Era c.1934
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- Forstner Chain Corporation
Country City Irvington NJ
Symbol cartouche, frame, hexagon, pearls, ribbon, star
Shape cartouche, frame, hexagon, star
Era c.1934 c.1950, c.1943
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- Foster & Bro. Co., Theo W.
Country City Providence RI
Symbol banner, flag
Era c.1915, c.1934
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- Fougeray, Louis E.
Country City New York NY
Era (1892 -1955) e.1933