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Patents > Office: Other & Tech fields: None & Filing date: 1912

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None (310) · S. Sokal (2) · J. S. Withers & Spooner (2) · Dom. Casalonga (2) · Coventry & Williams (2) · P. R. J. Willis (2) · Marks & Clerk (2) · Hippolyte Josse (2) · Victor J. Evans (2) · A. A. Thornton (2)
National tech categories:
None (245) · FR 6.4 (19) · USPC 244/48 (7) · USPC 244/80 (5) · USPC 244/119 (4) · USPC 244/233 (4) · USPC 244/234 (4) · USPC 244/87 (4) · USPC 244/139 (4) · USPC 244/90R (4) · USPC 244/92 (4) · USPC 244/45R (4) · USPC 244/100R (4) · USPC 244/35R (3) · FR 5.3 (3) · USPC 244/104R (3)
CPCs:
CPC B64C2700/6295 (40) · CPC B64C17/00 (37) · CPC B64C39/00 (21) · CPC B64C13/00 (20) · CPC B64C23/005 (18) · CPC B64C3/00 (15) · CPC B64C3/385 (14) · CPC B64C33/02 (14) · CPC B64C35/00 (14) · None (11) · CPC B64B1/00 (9) · CPC B64C2700/6218 (9) · CPC B64C3/14 (9) · CPC B64C2700/6274 (8) · CPC B64C2700/6214 (7)
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