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Patents > Applicant firm: None & Filing date: 1918 & Family year: 1918

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Patent agent:
None (343) · None (12) · A. M. & William Clark (9) · Lavoix et Mosès (8) · Armengaud jeune (6) · Boult, Wade & Tennant (6) · Brewer & Son (5) · Munn & Co. (5) · Marks & Clerk (4) · Haseltine, Lake & Co. (3) · Mewburn, Ellis & Pryor (3) · N. S. Amstutz (3) · Phillipss (3) · Carpmaels, Radford & Newton (3) · J. Germain (3) · Brandon frères (3) · Abel & Imray (3)
National tech categories:
None (443) · FR 6.4 (29) · DE 77h.5 (8) · DE 77h.6 (4) · DE 77h.7 (3) · USPC 244/17.21 (2) · USPC 244/50 (2) · USPC 244/22 (2) · FR 5.3 (2)
IPCs:
None (327) · IPC B64C3/00 (22) · IPC B64C13/00 (14) · IPC B64C39/00 (12) · IPC B64C3/18 (10) · IPC B64C1/00 (9) · IPC B64C35/00 (9) · IPC B64C17/00 (9) · IPC B64B1/00 (8) · IPC B64C1/06 (7) · IPC B64C11/04 (6) · IPC B64C11/00 (6) · IPC B64C25/00 (5) · IPC B64C3/38 (5) · IPC B64C11/36 (4) · IPC B64C3/26 (4) · IPC B64C11/20 (4) · IPC B64C25/50 (3) · IPC B64C27/04 (3) · IPC B64C33/02 (3)
CPCs:
CPC B64C3/00 (36) · CPC B64C13/00 (32) · CPC B64C2700/6295 (27) · CPC B64C2700/6235 (22) · CPC B64C17/00 (21) · CPC B64C23/005 (20) · CPC B64C2700/6256 (20) · CPC B64C39/00 (19) · CPC B64C3/18 (17) · CPC B64B1/00 (16) · CPC B64C1/065 (14) · CPC B64C11/04 (14) · CPC B64C35/00 (13) · CPC B64C3/185 (11) · CPC B64C33/02 (11) · CPC B64B1/40 (11) · CPC B64C2700/6274 (11) · CPC B64C3/385 (10) · CPC B64C2700/6212 (9) · CPC B64C2700/6233 (9)
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