Drilldown: Patents
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Patent CA-1918-196108 (1) ·
Patent DE-1918-02-20 Ballonhüllen Gesellschaft m.b.H. (1) ·
Patent DE-1918-03-10 Karl Schmittner or Ballonhüllen Gesellschaft m.b.H. (1) ·
Patent DE-1918-10-10 Ballonhüllen Gesellschaft m.b.H. (1) ·
Patent DE-1918-10-24 Anton Heinen or Ballonhüllen Gesellschaft m.b.H. (1) ·
Patent DE-1918-388537 (1) ·
Patent GB-1918-128040 (1) ·
Patent US-1918-1589780 (1)
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