Drilldown: Patents
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Patents > Office :
DE or
ES or
UN or
US
& Applicant firm:
None
& Granted:
Yes
& Publication date:
1908
& National tech categories :
DE 77h.6 or
FR 5 or
USPC 244/45R
& IPCs:
IPC B64C27/54
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Showing below up to 1 result in range #1 to #1.