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Jan Sjouke Sipkema
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Vught, NL
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last 30 patents
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Patent Grant
Device for applying a road marking line or the like
Patent number
3,994,611
Issue date
Nov 30, 1976
Wegenbouwmaatschappij J. Heijmans B.V.
Jan Sjouke Sipkema
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES