USD229311S - Electricity measuring demonstrator - Google Patents
Electricity measuring demonstrator Download PDFInfo
- Publication number
- USD229311S USD229311S US D229311 S USD229311 S US D229311S
- Authority
- US
- United States
- Prior art keywords
- demonstrator
- electricity measuring
- electricity
- measuring
- mass
- Prior art date
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- 230000005611 electricity Effects 0.000 title description 10
- 241001315286 Damon Species 0.000 description 2
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Description
United States Patent 0 ELECTRICITY MEASURING DEMONSTRATOR David E. Munn, Framingham, and Robert Maddestra, Hyde Park, Mass., assignors to Damon Corporation, Needham, Mass.
Des. 229,311 Ce Patented Nov. 20, 1973 Filed Mar. 29, 1971, Ser. No. 129,297
Term of patent 14 years Int. Cl. D19-07 US. Cl. D25--1 R 4 FIG.I
FIG. 1 is a front perspective view of an electricity measuring demonstrator showing our new design and,
References Cited FIG. 2 is a rear perspective view of the electricity UNITED STATES PATENTS D. 183,770 10/1958 Schwartz D265 i?,i2; f of 3,216,131 11/1965 Singerman 3s 19 A The ornamental design for an electricity measuring 2,346,773 4/1944 McBnde et a1 35-19 A demonstrator, substantially as shown.
WALLACE R. BURKE, Primary Examiner A. P. DOUGLAS, Assistant Examiner
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