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Publication numberUSD180812 S
Publication typeGrant
Publication dateAug 13, 1957
Filing dateApr 9, 1956
Publication numberUS D180812 S, US D180812S, US-S-D180812, USD180812 S, USD180812S
InventorsEdgar H. Fritze
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Approach horizon indicator for aircraft
US D180812 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Des. 180,812 Patented Aug. 13, 1957 United States Patent Ofifice APPROACH HORIZON INDICATOR FOR AIRCRAFT Horst M. Schweighofer and Edgar I-l. Fritze,

Cedar Rapids, Iowa Application April 9, 1956, Serial No. 40,976

Term of patent 14 years FIG- I Des. 180,812

PAGE 2 Figure l is a front view of an approach horizon indica- References Cited in the file of this patent tor for aircraft showing our new design, and

UNITED STATES PATENTS Figure 2 is a perspective view of our approach horizon 33793 55445 99999 11111 8 8 9 9 1 11211 ggrr uu m AAAA F ...nn mam I a ma n mm ii nn m 00 O ccWwG 34827 0000217 00970 77166 The essential features of the design reside in the full The ornamental design for an approach horizon indicator for aircraft, as shown and described.