Drilldown: Patents

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Patents > Tech fields: None & Number of claims: 5-20

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Inventor location:
None (298) · London (7) · Chicago (5) · Seine (3) · Pennsylvania (3) · Baltimore (3) · Texas (2) · St. Louis (2) · Virginia (2)
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Patent agent:
None (43) · none (16) · Victor J. Evans (12) · Munn & Co. (12) · John P. Tarbox (8) · E. Blétry (7) · Brewer & Son (7) · Marks & Clerk (6) · Boult, Wade & Tennant (4) · J. S. Withers & Spooner (4) · Haseltine, Lake & Co. (4) · C. C. Hines (4) · C. A. Snow & Co. (4) · L. Chassevent (4) · Randolph, Jr. (3) · Stephen Watkins, Son & Groves (3) · Harris & Mills (3) · Edwards & Co. (3) · Wm. B. Whitney (3) · J. D. Roots & Co. (3)
National tech categories:
None (164) · FR 6.4 (40) · USPC 244/45R (15) · USPC 244/119 (8) · USPC 244/233 (8) · USPC 244/80 (8) · USPC 244/90R (6) · USPC 244/48 (5) · USPC 244/93 (5) · USPC 244/113 (5) · USPC 244/144 (4) · USPC 244/101 (4) · USPC 244/22 (4) · DE 77 (3) · USPC 244/65 (3) · USPC 244/46 (3)
IPCs:
None (182) · IPC B64C39/00 (27) · IPC B64C1/00 (16) · IPC B64C23/00 (15) · IPC B64C17/00 (15) · IPC B64C3/38 (14) · IPC B64C3/00 (10) · IPC B64C35/00 (7) · IPC B64C13/00 (7) · IPC B64C33/02 (7) · IPC B64C27/04 (4) · IPC B64C3/54 (4) · IPC B64C25/00 (4) · IPC B64B1/00 (3)
CPCs:
CPC B64C2700/6295 (36) · CPC B64C17/00 (32) · CPC B64C23/005 (28) · None (27) · CPC B64C3/385 (26) · CPC B64C13/00 (22) · CPC B64C39/00 (17) · CPC B64C39/08 (16) · CPC B64C2700/6274 (13) · CPC B64C33/02 (12) · CPC B64C3/00 (11) · CPC B64C39/005 (11) · CPC B64C35/00 (9) · CPC B64C2700/6256 (9) · CPC B64C2700/6218 (8) · CPC B64B1/00 (8) · CPC B64C3/54 (5) · CPC B64C2700/6235 (5) · CPC B64C2700/6233 (5)
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