Drilldown: Patents
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Patents > Year filed:
1901
& Applicant type
:
COMPANY
or
Other
& Supplementary to patent:
None
& Assigned to
:
Magneso Calcite Fire-Proof Company
or
William Woods Plankinton
or
None
& IPCs:
IPC B64C9/00
National tech categories=USPC 244/51
& CPCs:
CPC B64C9/00
& Number of claims:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.