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Patents > Year granted: 1917

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Patent agent:
None (230) · None (10) · John P. Tarbox (7) · Victor J. Evans (6) · Phillipss (4) · Munn & Co. (3) · Haseltine, Lake & Co. (3) · Herbert Haddan & Co. (3) · Boult, Wade & Tennant (3) · Brewer & Son (3) · Eric W. Walford (2) · Randolph, Jr. (2) · Rayner & Co. (2) · Christy and Christy (2) · H. Gardner & Son (2) · C. A. Snow & Co. (2) · J. D. Roots & Co. (2) · J. D. Roots & Co.; Phillipss (2) · Marks & Clerk (2) · Jerry? A. Mathews (2)
National tech categories:
None (291) · DE 77h.5 (8) · FR 6.4 (6) · HU V/h (5) · AT 77d (4) · CH 129b (4) · CA 244/35 (2) · DE 77 (2) · DE 37f.8 (2) · USPC 244/78.1 (2) · DE 77h.6 (2) · CA 244/24 (2) · USPC 244/100R (2)
IPCs:
None (280) · IPC B64B1/00 (10) · IPC B64C3/00 (6) · IPC B64C3/18 (6) · IPC B64C39/00 (4) · IPC B64C13/24 (3) · IPC B64C27/04 (3) · IPC B64C25/00 (3) · IPC B64C3/54 (3) · IPC B64C9/02 (3) · IPC B64C23/00 (2) · IPC B64C11/00 (2) · IPC B64C3/48 (2) · IPC B64C3/38 (2) · IPC E04B1/346 (2) · IPC B64C13/00 (2) · IPC B64C35/00 (2) · IPC B64C1/06 (2) · IPC B64C17/00 (2)
CPCs:
None (33) · CPC B64B1/00 (22) · CPC B64C13/00 (22) · CPC B64C3/00 (17) · CPC B64C23/005 (14) · CPC B64C2700/6295 (13) · CPC B64C17/00 (11) · CPC B64C3/18 (10) · CPC B64C35/00 (10) · CPC B64C2700/6235 (10) · CPC B64C2001/0081 (8) · CPC B64C33/02 (7) · CPC B64C2700/6256 (7) · CPC B64C25/60 (7) · CPC B64C2001/0063 (7) · CPC B64C3/185 (6)
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Citations from after 1930:
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