Drilldown: Patents
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- Publications (24552)
- Techtypes (2366)
Patents > Year granted:
1920 - 1929
& National tech categories :
USPC 244/30 or
None
& IPCs:
None
& CPCs:
CPC B64C17/00
Use the filters below to narrow your results.
None (4) ·
Anthony CHIARELLI (1) ·
APP D AVIAT DOUTRE (2) ·
Arlyn T VANCE (1) ·
Charles H ROSSEEL (1) ·
Curtis H Leinweber (1) ·
Delle Ernest RANDALL (1) ·
Everett E Kittredge (1) ·
Homer L BOYLE (1) ·
James Vernon Martin (2) ·
John C PACKARD (1) ·
John P. Tarbox (1) ·
Oswald F Zahn (1) ·
Otto W GREENE (1) ·
Thurlow E WEIBLE (1) ·
Ward Leathers (1)
None (2) ·
ANTHONY CHIARELLI (1) ·
APP D AVIAT DOUTRE (2) ·
BOYLE HOMER L (1) ·
David Kittredge (1) ·
Edith L Zahn (1) ·
ERNEST RANDALL DELLE (1) ·
F J ABBOTT JR (1) ·
GREENE AERONAUTICAL (1) ·
HEWLETT PACKARD (1) ·
James Vernon Martin (3) ·
Leinweber William H (1) ·
RADIO CONTROLLER (1) ·
Raymond Roze Perkins (1) ·
ROSSEEL Charles H (1) ·
Ward Leathers (1) ·
WEIBLE THURLOW E (1)
1215216 (1) ·
13371616 (1) ·
15762217 (1) ·
1913746919 (1) ·
1914827532 (1) ·
20534117 (1) ·
21153618 (1) ·
21292818 (1) ·
21995518 (1) ·
23096918 (1) ·
23584518 (1) ·
24551118 (1) ·
25357418 (1) ·
25423318 (1) ·
26411518 (1) ·
292818 (1) ·
342418 (1) ·
345582D (1) ·
503646D (1) ·
526118D (1) ·
526119D (1)
Showing below up to 21 results in range #1 to #21.
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- Main
- Timeline: Year filed
- Timeline: Year granted
- Timeline: Filing date
- Timeline: Full specification filed date
- Timeline: Grant date
- Timeline: Publication date
- Timeline: Family year
- Calendar: Year filed
- Calendar: Year granted
- Calendar: Full specification filed date
- Calendar: Grant date
- Calendar: Family year