Drilldown: Patents
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Patents > Office :
DE or
NZ or
Other
& Applicant type :
INDIV+COMPANY or
Other
& IPCs :
IPC B64B1/40 or
IPC B64B1/58
& CPCs:
CPC B64B1/40
& Family year:
1800 - 1899
& Citations from after 1930:
None
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- Timeline: Year filed
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- Calendar: Year filed
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