Drilldown: Patents
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Patents > Year filed:
1899
& Inventor country:
CH
& Applicant type:
None
& Related to aircraft :
1/2 or
1912-01-30 or
Partially or
Yes
& Number of text pages:
1-2
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.