Drilldown: Patents
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Patents > Year granted:
1915
& Office :
DE or
FR or
IN
& National tech categories :
DE 77 or
FR 6.4 or
USPC 244/45R
& IPCs :
IPC B64B1/06 or
IPC B64B1/40 or
IPC B64C39/00
& Number of figures:
6
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Showing below up to 1 result in range #1 to #1.