USPC 244/146
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Subset of classification for parachutes.:
"Parachutes having hollow bracing members which are inflated to cause the parachutes to open or to hold them open"
| Enclosing categories | USPC 244/142 |
|---|---|
| Subcategories | |
| Keywords | Parachutes, Frame |
| Start year | |
| End year |
- Patents in category USPC 244/146
- Patent US-1912-1043836
- Patent US-1897-582377 (Applicant person: William Cowell Sly, Filing date: 1896-10-24)
- Patent US-1909-1007405 (Applicant person: Rudolf Wagner • Carl Edler von Radinger, Filing date: 1909-05-03)
- Patent US-1912-1037943 (Filing date: 1911-03-23)
- Patent US-1915-1128648 (Applicant person: William C Young, Filing date: 1913-04-17)
- Patent US-1914-1213332 (Applicant person: Everard Richard Calthrop, Filing date: 1914-04-14)
- Patent US-1915-1189112 (Applicant person: Claude R. Howorth, Filing date: 1915-08-24)
