(22)
(22)
Where it is first named
(21) Appl. No.: 81,859 (22) Filed: Aug. 5, 1987
How it is written
- (22) 1×
Where it is named · 1
Controlled Process For The Production Of Thermal Energy From Gases And Apparatus Useful Therefore 1×
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(21) Appl. No.: 81,859 (22) Filed: Aug. 5, 1987