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D28,017 · Wright · "Design for a Prism-Plate and Border" · Page 1
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D28,017: 1 of 2

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Patents: 451 of 511
UNITED STATES PATENT OFFICE
FRANK L. WRIGHT, OF CHICAGO, ILLINOIS, ASSIGNOR TO
THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE.

DESIGN FOR A PRISM-PLATE AND BORDER.
First: D27,977 · Wright · "Design for a Prism-Light" · Page 1 Last: D28,020 · Wright · "Design for a Prism-Canopy" · Drawing Prev: D28,015 · Wright · "Design for a Prism-Plate" · Page 1 Next: D28,020 · Wright · "Design for a Prism-Canopy" · Page 1 Navigation
Frank L. Wright
40 of 41

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Luxfer: 84 of 88

Specification forming part of Design No. 28,017, dated December 7, 1897.
Application filed October 13, 1897. Serial No. 655,088. Term of patent 14 years.
To all whom it may concern:
    Be it known that I, FRANK L. WRIGHT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and original Design for a Prism-Plate and Border, of which the following is a description.
    My invention relates to designs for prism-plates and borders.
    Figure 1 is an elevation of a plate of my design. Fig. 2 is a vertical section.
    A is a prism-plate with prisms B on one side and a surrounding border C.
    I have illustrated the border as open-work.
    The essential features of my design are found in a prism-plate with a surrounding border lying in substantially the same plane as the body of the prism-plate.
    I claim--
    A design for a prism-plate and border, substantially as shown and described.
FRANK L. WRIGHT.
   Witnesses:
       DONALD M. CARTER,
       HOMER L. KRAFT.