Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & Inventor country : DE or NL & National tech categories : DE 77h or DE 77h.4

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Inventors:
None (8) · August Riedinger (3) · Caspar Braun (3) · Albert Geisler (2) · Emil Lehmann (2) · Sebastian Finsterwalder (2)
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Tech fields:
LTA (29) · balloon (17) · frame (11) · gas (7) · subsystem (7) · whole (5) · safety (5) · electricity (4) · metal (4) · method (4) · propulsion (4) · valve (4) · airship (4)
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Showing below up to 65 results in range #1 to #65.

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