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USD181108S - Knife sharpener - Google Patents

Knife sharpener Download PDF

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Publication number
USD181108S
USD181108S US D181108 S USD181108 S US D181108S
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US
United States
Prior art keywords
knife sharpener
knife
sharpener
united states
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Charles B. Rosenberg
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United States Patent 0 KNIFE SHARPENER Charles B. Rosenberg, Royal Oak, Mich.
Application May 4, 1955, Serial No. 35,801
Term of patent 14 years (Cl. D37-1) Des. 181,108 Patented Oct. 1, 1957 Figure l is a top plan view of a knife sharpener embodying my new design;
Figure 2 is a side elevation view;
Figure 3 is an end elevation view; and
Figure 4 is a sectional view taken along line 4-4 of Fig. 2.
I claim:
The ornamental design for a knife sharpener, as shown.
References Cited in the file of this patent UNITED STATES PATENTS Wethington Dec. 12, 1939 Hopp Feb. 6, 1951 Sahlstrom May 2, 1905 Talbert Apr. 16, 1946

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