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Patents > Year filed: 1912 & Filing date: September 1912 & Grant date: 1913

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None (2) · Alwin Viëtor (2) · Giuseppe Donati (2) · Edmund Kikut (2)
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None (4) · Giuseppe Donati (2) · Edmund Kikut (2)
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CPCs:
None (4) · CPC B64C2700/6295 (3) · CPC B64C39/00 (2) · CPC B64C3/26 (2) · CPC B64C23/005 (2) · CPC B64C11/00 (2) · CPC B64C11/006 (2)
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