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Patents > Granted: Yes & Family year: 1913 & First filing: Yes

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Patent agent:
None (178) · None (15) · Boult, Wade & Tennant (9) · Victor J. Evans (8) · Munn & Co. (7) · Schwab (6) · Dupont et Elluin (6) · Marks & Clerk (6) · Herbert Haddan & Co. (5) · Armengaud jeune (5) · Hyde & Heide (4) · Hippolyte Josse (3) · L. Chassevent (3) · J. Bonnet-Thirion et Breton (3) · J. Germain (3) · P. Follin (3) · Charles W. Hills (3) · H. Boettcher fils (3) · Allen S. Davis(?) (3)
National tech categories:
None (124) · FR 6.4 (96) · DE 77h.5 (8) · USPC 244/233 (8) · USPC 244/45R (6) · USPC 244/119 (6) · USPC 244/177 (6) · USPC 244/80 (5) · USPC 244/22 (5) · AT 77d (5) · HU V/h (5) · USPC 244/101 (5) · USPC 244/125 (4) · BE K (4)
IPCs:
None (207) · IPC B64C17/00 (35) · IPC B64C1/00 (32) · IPC B64C35/00 (16) · IPC B64B1/00 (13) · IPC B64C39/00 (13) · IPC B64C3/00 (11) · IPC B64C33/02 (9) · IPC B64D17/00 (5) · IPC B64C23/00 (5) · IPC B64C3/38 (5) · IPC B64C13/00 (5) · IPC B64C17/06 (4) · IPC B64B1/58 (4) · IPC B64C25/00 (3) · IPC B64C33/00 (3) · IPC B64C13/04 (3) · IPC B64B1/62 (3) · IPC B64C3/26 (3) · IPC B64C11/04 (3)
CPCs:
CPC B64C17/00 (57) · None (29) · CPC B64C2700/6295 (26) · CPC B64C35/00 (24) · CPC B64B1/00 (23) · CPC B64C2700/6218 (20) · CPC B64C13/00 (18) · CPC B64C3/00 (14) · CPC B64C33/02 (13) · CPC B64C3/385 (11) · CPC B64C23/005 (10) · CPC B64C39/00 (10) · CPC B64C2700/6212 (8) · CPC B64F2700/628 (7) · CPC B64B1/58 (7) · CPC B64C11/006 (7) · CPC B64C39/08 (7)
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