Drilldown: Patents
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Patents > Office :
?? or
GB or
MX or
UN
& Applicant type:
INDIV
& National tech categories :
GB 4 propelling or
USPC 244/90R or
None
& IPCs:
IPC B64C13/00
& Family year:
1909
& Number of figures:
3
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.