Slab door portion

Building units and construction elements – Prefabricated unit – Closure

Design Patent

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Design Patent

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D0470242

CLAIM:
The ornamental design for slab door portion, as shown and described.

REFERENCES:
patent: 916128 (1909-03-01), Ellis
patent: 1312925 (1919-08-01), Ruehlmann
patent: 3760543 (1973-09-01), McAllister
patent: 4152876 (1979-05-01), Seely
patent: D255838 (1980-07-01), Emanuel
patent: 4327535 (1982-05-01), Governale
patent: D265929 (1982-08-01), Simpson
patent: D265932 (1982-08-01), Simpson
patent: 4430836 (1984-02-01), McKann
patent: 5022206 (1991-06-01), Schield et al.
patent: 5074087 (1991-12-01), Green
patent: 5175970 (1993-01-01), Green
Stanley Entry Door Systems Brochure, 48 pages, copyright date 1999.

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