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US Patent: 1,493,171
Shears
Patentees:
François Alexis Henri Deschâtres (exact or similar names) - Paris, France
Huber Gaston Raphael Vulliet (exact or similar names) - Paris, France

USPTO Classifications:
30/238

Tool Categories:
metalworking machines : metal shearing machines

Assignees:
André Gueneau - Paris, France

Manufacturer:
Unishear Co., Inc. - New York, NY
Achard et Cie. - Genay, France
The Stanley Works - New Britain, CT

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 02, 1922
Granted: May 06, 1924

Reissue Information:
Reissued as RE17,139 (Nov. 20, 1928)

Patent Pictures:
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Vintage Machinery entry for The Stanley Works
Description:
The 1940 lawsuit, Stanley Works v. C. S. Mersick Co., tells us that the American rights to this patent were owned by the Stanley Works, which inherited them when they acquired Unishear Co., Inc. See this patent's reissue for more information.

The original French manufacturer of this invention was "Achard et Cie" according to that Stanley Works v. Mersick lawsuit. Early machines sold by Unishear were manufactured by Achard et Cie in France, but deliveries were erratic and they began selling their Model A-14 which was manufactured for them in the US, by an unknown manufacturer. Gueneau, the owner of this patent, sued for infringement but a settlement was quickly reached that allowed Unishear to continue making and selling the A-14. The application for reissue was filed the day after that settlement was signed; the reissue was made to broaden the original claims.

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