US D206634 S
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United States Patent Ofifice 206,634
Patented Jan. 3, 1967 SIREN Leo A. Guthart, Old Westbury, N.Y., assignor to Alarm Device Manufacturing Company, a division of Pittsburgh Railways Company, Inc., a corporation of Pennsylvania Filed June 23, 1966, Ser. No. 2,786
Term of patent 14 years (Cl. D72--1) FIG. 1 is a perspective view taken from the front and References Cited by the Examiner one side of a siren embodying my new design; and UNITED STATES PATENTS FIG. 2 is a perspective view taken from the rear and 72 1 side shown in FIG. 1, the undisclosed side being a mirror 991177 4/1936 Armstrong D image of the Side shown 2,462,862 3/1949 Guthren 11 I claim OTHER REFERENCES g g ornamental deslgn for a slren as Shown and de' Darley Police Supplies, Cat., No. 161, received July 30,
1959, p. 20, Champion Super High Speed Siren" item and Special Valve for Chiefs item.
Federal Enterprises Inc. Bulletin 86A, received April 11, 1950, p. 7.
WALLACE R. BURKE, Primazy Examiner. JAMES R. LARGEN, Assistant Examiner.