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Hasselbacher; Annemarie
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Neustadt, DE
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Patent Grant
Thermally-insulating connecting elements for coupling two component...
Patent number
4,272,941
Issue date
Jun 16, 1981
Hasselbacher; Annemarie
Wilhelm Hasselbacher
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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