Drilldown: Patents

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Patents > Filing date: 1800 - 1899 & Supplementary to patent : Patent FR-1891-216860 or None

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Applicant is inventor:
Application number:
None (1410)
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Supplementary to patent: (Click arrow to add another value)
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Assigned to:
None (1381) · Magneso Calcite Fire-Proof Company (2) · Syracuse, NY (2) · Charles Spear (2) · Thenen (2) · Dewey Corporation (2)
IPCs:
None (1212) · IPC B64B1/00 (42) · IPC B64C31/06 (20) · IPC B64C31/00 (18) · IPC B64C33/02 (12) · IPC F42B10/00 (11) · IPC B64B1/40 (9) · IPC B64C11/00 (7) · IPC B64C39/00 (7) · IPC B64B1/58 (6) · IPC A01H5/02 (5) · IPC B64C9/00 (5) · IPC B64B (5) · IPC B64B1/62 (4) · IPC B64C27/04 (3) · IPC B64C29/00 (3) · IPC B64C3/00 (3) · IPC B64B1/06 (3) · IPC B64C33/00 (3) · IPC B64C31/02 (3)
First filing:
Citations from after 1930:
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