Design for an alb filter
US D117566 S
Description (OCR text may contain errors)
Des. 1 17,566
Nov. 14, 14939. -E..F. KOEHLER vAIR FILTER Filed Jan. 10, 1958 ATTORNEY Patented Nov. 14, 1939 Des,
UNITED STATES PATENT OFFICE DESIGN FOR AN AIR FILTER.
Ernest F. Koehler, Berlin, Mass.
.I Application January 10, 1938, Serial No. 74,170
Term of patent 14 years To all whom it may concern: Fig. 2 is a, perspective View of the air lilter Be it known that I, Ernest F. Koehler, a citizen shown in Fig. 1, and of the United States, residing in Berlin, in the Fig. 3 is an end view of the air filter shown in county of Worcester and Commonwealth of Mas- Fig. l. sachusetts, have invented a new, original, and I claim: ornamental Design for Air Filters, of which the The ornamental design for an air lter, subiollowing is a specicaton when taken in constantially as shown. nection with the accompanying drawing, in which ERNEST F. KOEHLER.
Fig. 1 is a side elevational View of an air filter embodying my new design.