USD186271S - Colommeter tester - Google Patents
Colommeter tester Download PDFInfo
- Publication number
- USD186271S USD186271S US D186271 S USD186271 S US D186271S
- Authority
- US
- United States
- Prior art keywords
- tester
- colommeter
- colorimeter
- view
- milwaukee
- Prior art date
Links
- 241001053269 Prunella modularis Species 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L Sodium thiosulphate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
Images
Description
United States Patent Office Des. 186,271 Patented Oct. 6, 1959 COLORIMETER TESTER Lawrence P. Marks, Milwaukee, Wis., assignor to Romar Filter Corporation, Milwaukee, Wis., a corporation of Wisconsin Application September 8, 1958, Serial No. 52,541
Term of patent 3 /2 years (Cl. D16-2) Fig. 1 is a front perspective view of a colorimeter tester showing my new design;
Fig. 2 is a rear elevational view thereof;
Fig. 3 is a side elevational view thereof; Fig. 4 is a top plan view thereof; and
D. 116,016 Fig. 5 IS a bottom plan vlew thereof. D 182 004 I 2,567,445
The ornamental design for a colorimeter tester, as shown.
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References Cited in the file of this patent UNITED STATES PATENTS McCreary Nov. 27, 1928 Dunnock July 18, 1939 Buckingham Aug. 8, 1939 Spreitzer Jan. 28, 1958 Parker Sept. 11, 1951 OTHER REFERENCES W. A. Taylor and Company, Modern Ph and Chlorine Control Catalog, 1945, page 13, top of page, comparator.
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