USD226267S - Structural building block - Google Patents

Description

nited States Patent 0 Des. 226,257 Patented F eh. 6, 1973 STRUCTURAL BUILDING BLOCK Roland Spellier, Lemgo, Germany, assignor to Richard Heinze, Herford, Germany Filed Nov. 9, 1971, Ser. No. 197,201

Term of patent 14 years Int. Cl. D2501 US. Cl. Dl8--2 R FIG. 2.

FIG. 1 is a perspective view of the structural building block comprising two identical units fixed back-to-back;

FIG. 2 is a front .view thereof; and

FIG. 3 is a side view thereof.

I claim:

The ornamental design for a structural building block, as shown,

FIG. 3.

References Cited UNITED STATES PATENTS D. 317,764 10/1899 Locke D60-2 783,448 2/1905 Merrill. 3,386,217 6/ 1968 Couture.

A'. HUGO WORD, 'Primary Examiner

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