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Patents > Assigned to: None & National tech categories: None & Family year: 1918

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None (451) · Indiana (5) · Pennsylvania (4) · Chicago (3) · Oklahoma (3) · Denver (2) · Surrey (2) · New York state (2) · Minneapolis, Minnesota (2) · London (2)
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None (306) · Brewer & Son (13) · A. M. & William Clark (9) · None (9) · Boult, Wade & Tennant (6) · Haseltine, Lake & Co. (5) · John P. Tarbox (5) · Marks & Clerk (5) · Munn & Co. (4) · Phillipss (4) · G. F. Redfern & Co. (3) · Mewburn, Ellis & Pryor (3) · N. S. Amstutz (3) · Herbert Haddan & Co. (3) · Abel & Imray (3) · Carpmaels, Radford & Newton (3) · Dony and Lejeune (3) · Joshua R. H. Potts (3)
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IPCs:
None (310) · IPC B64C3/00 (13) · IPC B64C39/00 (12) · IPC B64C13/00 (11) · IPC B64C35/00 (10) · IPC B64C3/18 (10) · IPC B64C1/00 (8) · IPC B64C11/20 (8) · IPC B64B1/00 (7) · IPC B64C17/00 (7) · IPC B64C23/00 (6) · IPC B64C1/06 (6) · IPC B64C11/36 (6) · IPC B64C11/00 (5) · IPC B64C33/00 (4) · IPC B64C3/38 (4) · IPC B64C11/04 (4) · IPC B64C25/00 (4) · IPC B64C1/08 (4)
CPCs:
CPC B64C3/00 (31) · CPC B64C13/00 (30) · CPC B64C2700/6295 (26) · CPC B64C2700/6256 (23) · CPC B64C17/00 (18) · CPC B64C2700/6235 (18) · CPC B64C3/18 (17) · CPC B64C39/00 (17) · CPC B64C23/005 (16) · CPC B64B1/00 (16) · CPC B64C35/00 (14) · CPC B64C1/065 (13) · CPC B64C3/185 (12) · CPC B64B1/40 (12) · CPC B64C2700/6233 (11) · CPC B64C2001/0081 (11) · CPC B64C11/04 (10) · CPC B64C3/385 (9)
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