Title:
【発明の名称】円環型航空機
Document Type and Number:
Japanese Patent JP2958810
Kind Code:
B2
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Inventors:
DEI TERENSU ROBAATO
Application Number:
JP50727690A
Publication Date:
October 06, 1999
Filing Date:
May 11, 1990
Export Citation:
Assignee:
DEI TERENSU ROBAATO
International Classes:
B64C27/20; B64C39/06; (IPC1-7): B64C27/20; B64C39/06
Domestic Patent References:
| JP61268597A | ||||
| JP59195496A | ||||
| JP635784A |
Other References:
【文献】米国特許3397853(US,A)
Attorney, Agent or Firm:
Shoichi Takezawa (1 person outside)