Drilldown: Patents

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Patents > Office : DE or SE or Other & Applicant type : 1 or INDIV & Tech fields : Stability or propulsion & National tech categories : DE 77 or USPC 244/30

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Inventors:
Carl Alfred Johansson (3) · Ernst Georg August Baumgarten (2) · Gustav Koch (2) · Stewart Cairncross (2) · Richard Czygan (2)
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Applicant person:
None (10) · Carl Alfred Johansson (3) · Ernst Georg August Baumgarten (2) · Richard Czygan (2)
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Citations from after 1930:
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Showing below up to 54 results in range #1 to #54.

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