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Patents > Office : DE or IT & CPCs : CPC B64B1/40 or CPC B64B1/58

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Inventors:
None (14) · Ernst Georg August Baumgarten (2)
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Tech fields:
LTA (48) · balloon (20) · frame (14) · gas (8) · car (8) · airship (6) · design (6) · navigation (5) · None (5) · material (4) · compartments (4) · propulsion (4)
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CPCs: (Click arrow to add another value)
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Cites these patents:
Citations from after 1930:
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