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ELEVATOR SUPPLIES CO. v. GRAHAM & NORTON CO.

No. 636.

33 F.2d 146 (1929)

ELEVATOR SUPPLIES CO., Inc., v. GRAHAM & NORTON CO., et al.

District Court, D. Delaware.

June 10, 1929.

Attorney(s) appearing for the Case

E. Ennalls Berl (of Ward & Gray), of Wilmington, Del., and Samuel E. Darby, Jr. (of Darby & Darby), of New York City, for plaintiff.

William G. Mahaffy, of Wilmington, Del., and Clifton V. Edwards (of Edwards, Bower & Pool), of New York City, and Henry C. Townsend and Virgil C. Kline (of Townsend & Decker), both of New York City, for defendants.

MORRIS, District Judge.

Of the two patents here in suit, the first, reissue No. 13,932, to Wylde and Schenck, has for its stated object a door controlling device that will prevent an unauthorized opening of an elevator shaftway door, even though the door is not completely closed. The object of the second, No. 1,105,053, likewise to Wylde and Schenck, is, without increase of hazard, to shorten the time necessary for the elevator to remain at the several floors, and...

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