Cave-like enclosure

Details Cave-like enclosure Cave-like enclosure

1995-10-11

1997-05-27

Zarfas, Louis S.

Building units and construction elements

Structure

Simulative

D25 19, D19 61, D30112, D21114, D21253, 2503

Patent

active

D03795225

REFERENCES:
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patent: D359463 (1995-06-01), Lindo et al.
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patent: 4085555 (1978-04-01), Mann
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patent: 4655013 (1987-04-01), Ritland
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patent: 5443774 (1995-08-01), Kliih et al.
Lionel Train Catalog p. 57, item No. 121 "Landscaped tunnel" 1968.
"Dogloo" advertisement. .COPYRGT.1995.

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