Free piston engine power unit
United States Patent 3005306

Inventors:
Vannevar, Bush
Publication Date:
10/24/1961
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Assignee:
Vannevar, Bush
Primary Class:
60/595
Other Classes:
417/340, 60/607, 60/613, 60/791
International Classes:
F02B71/04; F02B71/06; F02C5/08; F02B71/00; F02C5/00
Foreign References:
GB502758A