Drilldown: Patents
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- Publications (24551)
- Techtypes (2366)
Patents > Year filed:
1920 - 1929
& Related to aircraft:
Yes
& National tech categories
:
FR 6.4
or
USPC 244/233 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Use the filters below to narrow your results.
None (1) ·
Patent DE-1916-03-04 Ballonhüllen Gesellschaft m.b.H. mit Beschränkter Haftung (1) ·
Patent DE-1917-09-23 Ballonhüllen Gesellschaft m.b.H. mit Beschränkter Haftung (1) ·
Patent DE-1918-02-20 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)
Showing below up to 4 results in range #1 to #4.