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Display shelving
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Patent number 4,122,955
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Issue date Oct 31, 1978
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Roblin Industries, Inc.
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Harry Celms
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Gate mechanism for cart
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Patent number 4,118,044
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Issue date Oct 3, 1978
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Roblin Industries, Inc.
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Harry Celms
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Base for nestable shopping cart
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Patent number 4,067,591
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Issue date Jan 10, 1978
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Roblin Industries, Inc.
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Harry Celms
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Shopping cart
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Patent number 4,046,394
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Issue date Sep 6, 1977
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Roblin Industries, Inc.
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William A. Thompson
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS