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D28,018 · Waller · "Design for a Prism-Plate and Border" · Page 1
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D28,018: 1 of 2

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Patents: 452 of 511
UNITED STATES PATENT OFFICE
EDWARD CARSON WALLER, OF CHICAGO, ILLINOIS, ASSIGNOR TO
THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE.

DESIGN FOR A PRISM-PLATE AND BORDER.
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Edward C. Waller
2 of 2

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Luxfer: 85 of 88

Specification forming part of Design No. 28,018, dated December 7, 1897.
Application filed October 13, 1897. Serial No. 655,086. Term of patent 14 years.
To all whom it may concern:
    Be it known that I, EDWARD C. WALLER, 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 Prism-Plates and Borders, of which the following is a description.
    My invention relates to designs for prism-plates and borders and is illustrated in the accompanying drawings, wherein--
    Figure 1 is a view of a prism-plate and border of my design. Fig. 2 is a cross-section therethrough on line 2 2.
    A is a prism-plate comprising a substantially-flat body with prisms C on one side thereof.
Surrounding the prism-plate is a border B, dished toward the prism side, as shown in the cross-section. I have shown the border as ornamented with open-work at D.
    The essential feature of my design is found in a prism-plate with a surrounding border dished toward the prism side.
    I claim--
    A design for a prism-plate and border, substantially as shown and described.
EDWARD CARSON WALLER.
Witnesses:
    JOHN M. EWEN,
    MONTGOMERY B. PICKETT.