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Patents > Filing date: October 1918 & National tech categories : BE K or None

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None (7) · Charles B. Kirkham (3) · Chessborough Mackenzie-Kennedy (2) · KAWNEER (2)
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CPCs:
CPC B64C23/005 (4) · CPC B64C3/00 (4) · CPC B64C35/00 (3) · CPC B64C2700/6256 (2) · CPC B64C11/205 (2) · CPC B64C2700/6295 (2) · CPC B64C2700/6235 (2) · CPC B64C2700/6233 (2) · CPC B64C25/64 (2) · CPC B64C13/12 (2) · CPC B64C13/00 (2) · CPC B64C9/00 (2) · CPC B64C11/04 (2) · CPC B64B1/40 (2)
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