US Patent: 620,554
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Air and Gas Engine
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Patentee:
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John W. Eisenhuth (exact or similar names) - New York, NY |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Nov. 16, 1897 |
Granted: |
Feb. 28, 1899 |
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Joel Havens
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Description: |
Claim:
My invention relates to improvements in air and gas engines, and more particularly to that class of engines which are adapted to use mixtures of air and gas or oils to operate a piston and also adapted to use compressed air for operating a piston.
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